DIY solar cookers have their day in the sun – but don’t leave them out in the dew

I brought two DIY solar cookers to my cat-sitting gig in “THE VALLEY”. Because they are so portable, and because this home has every modern convenience + solar panels, it’s a cheap thrill to do something low tech and hands on.

How portable are these cookers? The five pieces of poster board form a 14″x14″x1/2″ packet!

4- 14″ sq, 1-10″ sq. posterboard,
4 clothes pegs and a shoelace.

Or, you can fold it like a fig and invert it into a shopping bag.

Invert it into shopping bag
Fold it like a fig

The neighbors gifted me some freshly caught tuna and I had butternut squash from LA EcoVillage garden. I always use a meat thermometer when cooking fish or meat. The covered pan is wrapped in an oven roasting bag to trap heat.

Tuna and squash
Use thermometer for
meat or fish
In spite of the cooker’s curled edges, the cooker cooked the cabbage.

Despite the warped pasteboard edges of the cooker on the right, a pot of cabbage was well cooked.

Solar cooker tip: Don’t expose the poster board cooker to moisture – not even over night dew – because the edges will curl. After a few days under heavy books, they resumed their former shape. At the EcoVillage, when I store the cookers outdoors, I wrap them in plastic.

Solar Cooker Demonstrations: It is my intention to plan a solar cooker demonstration to fund raise for Solar Cookers International and for the LA EcoVillage, so stay tuned for that announcement.

Solar cooked eggs

This is so low tech – I love it.

Eggs cook faster in a solar oven than in the cooker. I haven’t got the knack of predicting whether they will be hard or soft cooked, yet, so I just try one & decide whether or not to let them cook longer.

Eggs in DIY solar cooker
  • place the eggs you want to cook in a cardboard egg carton
  • remove the top of egg carton
  • put carton in solar cooker or solar oven
  • after temperature reaches 212℉, continue cooking until you think they’re done the way you like them.

Next LA Ecovillage solar cooker workshop Sat., Oct 15, 2022, 11 a – 1 p. Tickets: https://www.eventbrite.com/e/cooking-with-the-sun-solar-cooking-workshop-at-los-angeles-eco-village-tickets-392699293157

Day 9- Solar Cooking Sabbatical

in which I nap too long and try to crank up the temperature in the cooker

After a bike ride and lunch, I napped while the veggies were roasting. My plan was to roast chicken next, but it was 3:30. Is that too late? I spread 2 brined chicken thighs, seasoned with lemon & oregano over a bed of onions, cumin seeds & lemon grass; put the pan in a roasting bag and onto a metal rack in the cooker, (to let heat circulate under the pan). I pegged two halves of a large roasting bag across the cooker opening: 285° on the pan’s lid and digital in chicken probe = 156°.

Boost cooker T with roasting bags & metal rack.
Not wanting to ptomaine myself, I cooked chicken in toaster oven, 285° for 9 min. until chicken was probe was 165°.

Day 10 – Can the cooker temperature increase enough to roast an undelicate “delicata” squash?

At the farmers’ market yesterday I bought what appeared to be a delicata squash on steroids. When I tried to slice it this morning I discovered that, instead of the delicate, edible skin of a delicata, it had the rind of a gourd. I wanted to make a bean-boat, so I scooped out the center, flipped the lids of two cans of organic Goya beans* -and the cats appeared in a nano second.

They became polite but disinterested observers as soon as they discovered that the cans were not tuna!
Bean boat topped with ginger and remaining scooped squash.
Re: leftovers. I love the beeswax cotton wraps – in lieu of plastic.

Winter squashes need 400° + to bake.

• How close can we get?

• Will slow cooking compensate for temperature?

At 10 am I did the same routine as yesterday: pan in roasting bag on metal rack, covered cooker with roasting bag.

T = 310° when I returned from bike ride at 1 pm – and squash was cooked. (Taste is bland, not like delicata!). (Did I mention that there was only 1 farmer and a lot of misc. vendors at the NoHo Farmer’s market.)

Bike ride side note. Used my new telescope to watch cormorants feed their “babies” in their nests high in the trees at Sepulveda Nature Preserve.

Get your ticket while the oven is hot

for the Solar Cooking Workshop on Saturday, Aug. 27. If you can’t make that one, we’ll plan to channel the rays again in Oct., and maybe Tea and Solar Treats in Sept.

  • Product placements are part of my effort to demonstrate cooking with easily accessible food.

Super Solar Monday

Hot rocks and patio furniture in lieu of our EcoVillage clotheslines. Back ground, modified DIY solar cooker is trying to bake cornbread. Stay tuned for results on that.

Our August 27 solar cooking workshop attracted attention from Luther Krueger who hosts Saturday Solar Cooking Brunches in Minneapolis, gives s.c. demos across the state and interviews solar cooks around the country. He says, I think what you are doing is really up at the top for getting the message out–and DIY cookers are soon to be a big focus of my ….outreach efforts.

Solar cooking soars beyond hippies and science experiences

I’m on a solar cooking sabbatical

Cookers made from poster board, weigh 8 oz. Disassemble into 14″x14″x1″ easily portable package.

People asked me about solar cooking on camping trips and solar cooking for unhoused people so I brought these DIY solar cookers, made by Sage and me, to my cat-sitting gig. I’m challenging myself to use these cookers in lieu of gas or electric appliances as often as possible because the yard here has all-day sun.

Solar cooking is easy. It’s very forgiving: it doesn’t burn food. 

That said, there are some foods- like these chicken thighs and grains – that will sit happily in the heat after they’re safely cooked.

Digital probe read 167℉. Cooker temp was 320℉. Ambient T = 96℉.
Pre-soak buckwheat, millet; rinse quinoa to reduce cooking time & cooking water needed.
Here’s a quicker alternative.
1 c rice mixture + 2 c. water.

Other foods, like these veggies – want to be monitored a little closer if you want them crispy.

Green beans, chayote and spinach leaves from Eco-village garden
Summer squash, carrots, apples

I searched for some quick cooking vegetarian/vegan protein and found this line of “riced” products made from chickpeas & lentils.

I got 3 servings from this packet. Mixed with veggies it was delicious; on it’s own it’s a little gritty.

Ready to channel the sun?

Get your Eventbrite ticket to join Sage and me on Saturday, August 27 at the LA EcoVillage, as we cook and bake in 4 varieties of solar cookers. We’ll demonstrate how to make a simple cooker and have low cost DIY kits available for purchase. Limited to 12 participants including youth at least 10 y.o.

Forage, bake, eat

Solar and mental reflections while LA Eco-village kids bake with the sun

Collecting the mulberry blizzard on tarps makes harvesting easier. Why aren’t more people harvesting?
Reflectors direct the sun’s heat into this cork-insulated oven. (Made in Portugal using renewable cork). It gets hotter than boiling water, so only adults should put food in & take it out.
This collapsible reflecting cooker uses heat proof bowls to create an oven. It’s better for cooking than baking. Why is solar cooker use mainly a science project? Where resources are scarce, many people use a variety of solar cookers – from $5 Kyoto boxes to Solar Cookers International’s projects to cook food, sterilize water and reduce fossil fuel use. Now that many people are working from home, why hasn’t solar cooking caught on? While I try to choose fast cooking recipes to fit into a 90 min. demonstration, when I’m cooking on my own time, I usually food – especially beans & lentils – in the oven in the morning and come take them out at sundown, a little dry, but not burned!
Pulling stems & cores from mulberries.
Kids take turns to prep, add and mix ingredients, (see end of post for recipe).
Muffins at the edge of the oven were a little gooey. Next time, rotate the pan 1/2 way through baking.

To accommodate a wide variety of dietary preferences & needs I bake gluten free, vegan food for demonstrations. Here’s one of many that I have adopted from Rhian

I substituted mulberries in Rhian’s Blueberry Muffins   

Ingredients

▢60 g (¼ cup) coconut oil (or sub olive or vegetable oil)

▢200 ml (⅘ cup) unsweetened almond milk (or any other plant-based milk)

▢2 tablespoons lemon juice *

▢8 tablespoons maple syrup (or sub any other sweetener) ( i used 4 Tbsp)

▢1 teaspoon vanilla extract

▢Pinch salt

▢150 g (1 ¼ cup) ground almonds (almond meal) **

▢150 g (1 ¼ cup) gluten-free flour blend (or sub plain flour if not gluten-free)

▢2 heaped teaspoons baking powder (ensure gluten-free if necessary)

▢¼ teaspoon bicarbonate of soda (baking soda)

▢100 g (1 cup) fresh blueberries ( i subtituted mulberries)

Instructions

Preheat oven to 180 degrees Celsius (350 degrees Fahrenheit). I preheated sun oven for 1/2 hr.

Place the coconut oil in a large bowl and melt over a saucepan of boiling water or in the microwave (skip this step if using any other oil). (We melted it in sun oven)

Once melted, add the milk to the same bowl along with the lemon juice, maple syrup, vanilla, salt and ground almonds.

Sift in the flour, baking powder and bicarbonate of soda.

Mix well, adding a tiny splash more milk if it’s looking too dry. (Mulberries were wetter than blueberries so no extra liquid was used).

Add the fresh blueberries (mulberries) and fold in gently, to make sure you don’t crush them. (Mulberries crush!)

Transfer the mixture between muffin cases in a muffin tin.

Bake in the oven for 20 minutes until risen and an inserted skewer comes out clean. (about 90 min. in sun oven on clear, sunny, hot day).

Tastes best when fresh, but keeps covered in the fridge for up to a few days.

Why build a worm bin?

During our Eco-village Garden Exploration May 21, I plan to include vermicomposting by demonstrating DIY worm bins. (Eventbrite is helping us with the ticket hustle: https://www.eventbrite.com/e/explore-gardens-at-los-angeles-eco-village-tickets-326749395237

Why demonstrate a few puny worms munching on food scraps when we’re going to show off our 3 bin hot composting system?

Because building a DIY worm bin from discarded material aligns with 3 of our Core Values:

  • Celebrate and include joy in all our endeavors. I feel a rush of joy when resources “magically” appear after I envision a project. And I enjoy the magical transmutation of food scraps into rich humus.
  • Take responsibility for each other and the planet through local environmental and social action.
    • It doesn’t get much more local than plunking your food waste into your own worm bin
    • a DIY worm bin is pretty cheap, and
    • easier to fit into small spaces – indoors or out – than a large composting system.
  • Learn from nature and live ecologically. (Worms help us) gain a better appreciation of the intricate balance and interdependencies in nature…inviting us to tread more gently upon the Earth, says Mary Applehof, Worms Eat My Garbage.
Gather discarded material
Worm Buffet
Worm bin covered with shade cloth in shade of orange & papaya trees
Worm bin on blocks = instant sun shade for Taurine, LA Eco-village hardworking cat.

Cycles. Converting waste to a nutrient rich resource is just one of the natural cycles we’ll consider during our garden exploration, May 21. Please get tickets at Eventbrite https://www.eventbrite.com/e/explore-gardens-at-los-angeles-eco-village-tickets-326749395237

Cycle of life in the April garden

Cycles are one of the themes of a walk-about tour through Eco-village gardens, lead by Sage and me on May 21. Event tickets available through May 19.

Blossoming trees in their prime

Fejoa (Pineapple guava) blossoms behind Terraces
Pomegranate blossoms in front of Terraces
Persimmon blossoms along Terrace right-of-way
California Primroses by 117 front gate

Bounty at the end of plant life cycles

While Sunflower seed heads look raggedy at the end of their season,
birds and squirrels feast on them.
Nasturtiums often harbor aphids at the end of their season so I harvest them when they start to die back.

Pickled, nasturtium seeds taste like capers.

  • 1 pint Nasturtium seeds – let them dry a few days
  • 1 pint white vinegar
  • 2 bay leaves (from bay bushes in front of Terraces)
  • 1 tsp. sea salt
  • Peppercorns (optional)

Boil vinegar, bay leaves, salt & pepper. (This year I boiled vinegar in sun oven). Cool. Pack seeds into clean pint jar & pour cooled vinegar mixture over them. Store several weeks before using them.

Pizza topping: combined with crushed garlic and oil.

Nettles – the plant you love to hate!

Nettle seeds drop off dried plant

If you’re not dressed for success – long sleeves, socks, long pants and gloves – you may be painfully introduced to nettles. I try to keep them pruned from paths, and let them grow in less traveled areas. Young plants are among the earliest greens to emerge and I enjoy adding them to soups, so I let them re-seed themselves. They can be used to make fertilizer and they help composted material break down. Chickens and other birds are said to deworm themselves by eating nettle seeds. Fibers from nettle plants are used for making rope and are spun into a silky fiber. (Who knows when we may need to harvest nettle fibers?).

Shameless Commerce Division

Sage & Springer, Solar cooker and Garden guides, invite you to explore the water-wise, integrated vegetable and flower gardens, with over fifty fruit trees in our eco-village urban oasis. We’ll demonstrate various composting methods and offer optional composting participation. When the walk-about concludes, we invite you to socialize with us over a solar baked snack and garden-herb tea. Eventbrite tickets

HOT compost system – now what?

Let’s resume  this cliff hanger from the previous post

TA-DA!
Words can’t begin to praise Kurt and Nils for how skillfully and amicably they work together. Their creation is so beautiful I don’t want to get it dirty!

Soak the earth-floor of each bin.

Finished compost left in the old hot compost system was spread on the bottom of each section and soaked to create moist conditions for composting critters.

Sort garden waste into green and brown piles, max. 1/4″ diameter & 18″ long.

Let greens dry before adding to compost because there’s enough green from kitchen scraps to make a 2:1 ratio of green to brown.


Add a layer of reedy stems – breathing tubes – if you have them.

Layer dry – brown – leaves & stems

Collect vegetarian food scraps

Add food scraps & spread them out.

Cover with another brown layer, rinse out the food bucket & add water around the pile.

If you made a mess when you added garden waste, please sweep it.

Now you have composting bragging rights.  When we left off composting last year, we were processing at least 2000 lbs – 1 ton – of food scraps per year.   We have more people living here now, so I bet our numbers increase.

Garden & Harvest party May, ’17

Adriana & Samantha train grape vine to arch over walkway.

Yolanda & Shaila tame shrubs along walkway.

We harvested garlic, onion flowers, greens,  basil, squash pumpkin, potatoes – rather early for several of these . Pumpkin began growing in December!

Hilarious veggies!

Sam models the pumpkin

Shaila demonstrate its dental application

We’re so hungry that we

trust Samantha with a dull knife

Consensus, finally! We’re going to eat.

Gardening with rain!

Water thrifty plants get

Water thrifty plants get “high” on 2017’s lusty rainfall.

img0638a  YAY! After thinning out banana suckers and composting, two trees promise bananas.

img0641a img0643a   img0640aWe’re trellising some thorny plants along the fence to deter fence-climbing.

img0631a  Pedestrians from many cultures stop to ask about plants and talk about the gardens they have or used to have in their native countries.  Along the fence I like to plant crops – like these peas – plus herbs and flowers that they can harvest from the sidewalk.

 

In the courtyard

Newly mulched path will help to conserve moisture - make the effects of this rain last longer - and eventually break down to feed the soil.

Newly mulched path will help to conserve moisture – make the effects of this rain last longer – and eventually break down to feed the soil.

Draught tolerant plants added to “small fruit” garden.   Experimenting with clover as a  living mulch

Jujube

Jujube

prickly pear

prickly pear

img0607a img0608a    Goji berries & weeping mulberry and their new signs.

img0616a img0618a Parsley and lettuce are easily accessible for community to harvest.

img0610a img0609a  Yolanda has planted papayas next to greywater outlets.

Lower level

potatoes & fava beans planted around olla to slowly water plants during dry season.

potatoes & fava beans planted around olla to slowly water plants during dry season.

img0620a img0629a Papaya, banana and new grape vine against south facing wall will also help shade this apartment.

I had the privilege of meeting with Mayor Garcetti this week

I was honored and delighted to have a personal meeting with the Mayor this week. The Mayor goes way back with LAEV to before he became our Councilman, and we only owned one property instead of four.  So it’s always a delight to see how far both he and LAEV have come in the past dozen years or so.  I asked if we could take a photo, so I could have bragging rights when he’s our President some day.

Here a few of the topics we got to talk about, each of which the Mayor was supportive of.  Still a ways to go on advocacy work.  But with the help of the “less cars” folks, the permaculture folks, Teresa  Baker and her LATCH Collective, Hans Johnson leading the Styrofoam ban, and LAUSD Superintendent Michelle King, and, of course, the passionate folks who live in/at the Los Angeles Eco-Village, it’s all within reach!

  • Return the original intent of AB 744 for car-free affordable housing

    Mayor Garcetti and Lois

    Mayor Garcetti and Lois

    developments near transit.   The City watered this bill down so that developers couldn’t go less than 0.5 spaces per unit.  LAEV could demonstrate this for our future developments.

  • Tiny House Villages, legalize them, even on wheels.
  • Hillside terracing, using permaculture techniques for catching rainwater.
  • Joint City/LAUSD use of playgrounds during off-school hours
  • Styrofoam ban.  Let’s do it.
  • Vision Zero.  A few additional ideas.
  • Potholes and buses.  Best cost/benefits.

Let me know if you want a copy of what I recommended about these items.

 

 

Garden Group Meeting and Work party, Aug 20

attending : shaila, sarah, samantha, carrie, dani, yolanda, bambi, jocelyn, lara, carol jessica, ely; cameo: bruce

succulent garden : samantha researched plants that might be suitable for the dry area next to loquat tree in front and possibly in the bulb-out raised bed. Contestants were: yucca, ornamental grass, indian mallow. we choose mallow which is perennial, blooms year round and has orange flowers. as a member of mallow family, may also be medicinal. samantha will check for sources.

clean chicken coop & prune adjacent lamb’s quarters & lemon verbena bambi & jocelyn overcame anxiety about not knowing what to do by expertly hauling bedding from chicken coop to compost and pruning around the coop entry path.

transplant goji berry from sandbox dani and yolanda located a good site for the goji berry & dug & prepared a hole for it’s new digs. Unfortunately, the goji berry had been cut down, but it’s roots were still in the sandbox, so they have been re-located to the bed with banana & papaya trees fed by greywater.

prune apple, pomegranate trees & wooly aphids shaila, sarah & carol pruned & carol and yolanda continued on sunday. Jessica researched the wooly white growths on the trees & diagnosed “wooly aphids”.
carol’s wooly aphids control plan spray with 1 TBSP dish soap dissolved in hot water. [1]

Pruning-at-large lara pruned plants surrounding entry to her apartment. Carrie pruned where needed.

After party sweet & juicy pomegranates from our pruning, and cold, sweet watermelon brought by bambi were our rewards while we chatted in the courtyard after working. Many of us went from there to sea dragon for supper & more lively conversations.

Next garden group planned for Sept. 17

Yay Rain!

I know there’s 5 more days until the new moon, but it’s really raining today, so i plugged some sweet peas & austrian field peas in the ground.  (probably should NOT have soaked them overnight, but when rain is predicted here, the drops can usually be counted, so i hope pre-soaking wasn’t overkill for today’s conditions. )  Will keep you  posted in 2-4 weeks.

Meanwhile, Angelinos, enjoy the moisture. on your dry skin.

look what the garden gave me for supper Jan 1!

  • 2 lbs sweet potatoes
  • collardsIMG_5176
  • chayote
  • oregano

all from a plot that gets no direct sun between Nov to Feb!  I harvested about 15 lbs of sweet potatoes from 3 plants.  I’m amazed that they grow in the shade and seem to mature in cool temperatures.  They don’t seem to need much water.

IMG_5072Their flowers were blooming Oct – Dec.

Check out the personality of this 4 pounder!  You can see that gramma is happy about it too!
IMG_5107

Lasagna compost is ready for planting

The magic begins here

Even though I do this several times a week, setting the conditions for kitchen waste to become fertile soil is still the most amazing transformation.

Jonas finishes this compost pit with a  layer of soil.

Jonas finishes this compost pit with a layer of soil.

We planted nightshades: tomatoes, peppers, tomatillos here last year, and it was cover-cropped with clover during the winter.  After another round of cover crops, how about some corn?  Will we get enough light? Not the best exposure, but let’s experiment

compost cover-cropped with flax & buckwheat

compost cover-cropped with flax & buckwheat

Now that I think about growing corn, i think i’ll toss in some lentils to boast the nitrogen in this cover-crop mix. I’m using “seeds” that we stock in the food lobby bulk room.

Visitors work in Ecovillage gardens

Visitors to the ecovillage are encouraged to help with our projects.

IMG_4506

ernesto (visitor) and irma (member) dug holes for potatoes in composted lower level site.  Potatoes will alternate with sunflowers for an interesting visual, and clover cover-crops will protect the ground while everything is growing.

IMG_4500

ellary planting fingerling potatoes (donated by george
IMG_4505

ernesto practiced hilling potatoes using un- composted straw from the hot compost bins. the large leaf pale green (fuzzy) plant is mullein.  It will send up a stalk with yellow flowers that bees love

IMG_4530

bulb out garden on Bimini.  revived by carol and irma last year; maintained by visitors: ellary, daniel, carla supervised by carol and watered by shaila.

 

Sunken garden construction courtyard, dec, 2014 – jan. 2015

This area of the courtyard gets scant sun from end of Nov., so what better time for garden construction? Motivated by recent draught and desire to conserve water, i’m experimenting with sinking the garden beds below the paths. i figure it’s like hair – if i don’t like the haircut, it’ll grow back in.

"<br

 

02. one of the 18" holes at the "U" end of a bed that has just been "lasagna" composted for 12", keeping it 6" below the path, which is built up with some of excavated hard pan.

02. one of the 18″ holes at the “U” end of a bed that has just been “lasagna” composted for 12″, keeping it 6″ below the path, which is built up with some of excavated hard pan.

 

03.  1st layer of kitchen scraps on top of some reedy plant material - the breathing tubes.  within 8 weeks, i expect these kitchen scraps to be converted to composted so il.

03. 1st layer of kitchen scraps on top of some reedy plant material – the breathing tubes. within 8 weeks, i expect these kitchen scraps to be converted to composted so
il.

 

04. lasagna style composting kitchen scraps covered with water, soil & corrugated cardboard; repeat x 12".

04. lasagna style composting kitchen scraps covered with water, soil & corrugated cardboard; repeat x 12″.

 

05. ready for next layer of kitchen scraps & a "worm transplant" from another active compost site. note border of nasturium transplants along outside

05. ready for next layer of kitchen scraps & a “worm transplant” from another active compost site. note border of nasturium transplants along outside

 

06. newly composted bed (right) , raised path (left). most of beds are cover-cropped with clover when they're finished, but i decided to plant some of the bulk room fava beans adjacent to the transplanted volunteers.

06. newly composted bed (right) , raised path (left).
most of beds are cover-cropped with clover when they’re finished, but i decided to plant some of the bulk room fava beans adjacent to the transplanted volunteers.

 

07. volunteer favas, tomato & lettuce rescued from this construction site

07. volunteer favas, tomato & lettuce rescued from this construction site

 

08.  fingerling potatoe patch couldn't resist planting fingerling potatoes from george in one of the trenches.  composted soil will be used to hill them up until bed is 6" below path.

08. fingerling potatoe patch
couldn’t resist planting fingerling potatoes from george in one of the trenches. composted soil will be used to hill them up until bed is 6″ below path.

 

09. site for circular herb bed which will not be connected to drip irrigation.  Lavenders, sages & rosemary - low water needs plants are planned.

09. site for circular herb bed which will not be connected to drip irrigation. Lavenders, sages & rosemary – low water needs plants are planned.

 

10. Queen comfrey continues to provide leaves for comfrey fertilizer tea.

10. Queen comfrey continues to provide leaves for comfrey fertilizer tea.

Edy learns to bake with solar oven

We use the recipe for Apple Pan Dowdy from my ancient Fannie Farmer cookbook.

Edy does the math to double the recipe and makes the cottage pudding topping.

4258 - edy makes batter

4260 Edy adds topping to fruit

Apples, raspberries and concord grapes from our gardens are baked in the solar oven with cinnamon, nutmeg & ginger and placed in the bottom of the pan.

It took about 1 1/2 hours to bake.

It took about 1 1/2 hours to bake.

Edy carries his creation to the art studio opening

Edy carries his creation to the art studio opening

 

INGREDIENTS

  • 1/4 cup butter
  • 1/4 cup sugar
  • 1 egg
  • 1 cup water
  • 2 1/4 cup flour
  • 4 teaspoons baking powder
  • 1/2 teaspoon salt
  • 2 medium apples, peeled, if desired, and sliced
  • 2 tablespoons brown sugar
  • 1 teaspoon vanilla

 

PREPARATION

Heat the oven to 350 degrees.

Arrange the sliced apples in a greased pie pan or 9-by-9-inch baking dish. cinnamon, nutmeg, ginger

In a large mixing bowl, cream the butter and sugar well. Add the egg, and beat until smooth. In a separate mixing bowl, combine the flour, baking powder and salt, and add this to the butter-sugar-egg mix, alternating with the milk. Spoon this batter over the apple slices. Bake for about 30 minutes or until the cake is golden brown. Cool slightly before cutting.