Sweet Onion & Apple Upside Down Cake Recipe

Name: Sweet Onion & Apple Upside Down Cake
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: cooking spray, Nonfat; 1 medium sweet onion, peeled and sliced into one inch strips (Bermuda, Maui Sweet, Walla Walla, Texas Sweets, Vidalias, Carzalia, Sweet Imperial); 8 granny smith apples, peeled and sliced into 1/8-inch slices; 1/3 cup canola oil (extra light olive oil); 3/4 cup brown sugar, packed; 1/2 teaspoon cinnamon; confectioners' sugar; Batter; 4 egg whites; 1 cup all-purpose flour, sifted; 1 1/2 teaspoons baking powder; 5 ounces nonfat milk; 3/4 cup granulated sugar, plus; 2 tablespoons granulated sugar

Servings: persons

cooking spray, Nonfat
1 medium sweet onion, peeled and sliced into one inch strips (Bermuda, Maui Sweet, Walla Walla, Texas Sweets, Vidalias, Carzalia, Sweet Imperial)
8 granny smith apples, peeled and sliced into 1/8-inch slices
1/3 cup canola oil (extra light olive oil)
3/4 cup brown sugar, packed
1/2 teaspoon cinnamon
confectioners' sugar
Batter
4 egg whites
1 cup all-purpose flour, sifted
1 1/2 teaspoons baking powder
5 ounces nonfat milk
3/4 cup granulated sugar, plus
2 tablespoons granulated sugar

1
Preheat oven to 350 degrees.
2
Liberally spray 2 baking sheets with nonfat cooking spray. Place onions on one baking sheet and apple slices on the other. Bake onions until caramelized, for about 1 hour. Bake apples for about 4-5 minutes; remove from oven and set aside.
3
Heat oil in a 10-inch skillet add brown sugar and cinnamon. Stir until dissolved. Remove pan from heat, add caramelized onions and set aside.
4
In the large bowl of an electric mixer, beat egg whites until foamy and add flour, baking powder, milk and sugar until well incorporated. Spray a 9x13-inch baking pan with nonfat cooking spray. Layer brown sugar-onion mixture in prepared pan. Place the sliced apples over the onions. Press down to fill gaps between the apples. Cover with batter and bake about 45 minutes or until center tests clean. Remove from oven and cool to room temperature. Reverse the pan onto a serving tray and lightly dust with confectioner's sugar.

897

kcal

Calories

Fat

142

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Preheat the oven fully and bake on the middle rack for the most even results.
Check for doneness a few minutes early — a toothpick in the center should come out with just a few moist crumbs.
Let it cool before slicing so it sets properly and holds its shape.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

Saved locally in your browser — visible only to you.

How did you like this recipe?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

You need 14 ingredients. The key ingredients include: cooking spray, Nonfat, 1 medium sweet onion, peeled and sliced into one inch strips (Bermuda, Maui Sweet, Walla Walla, Texas Sweets, Vidalias, Carzalia, Sweet Imperial), 8 granny smith apples, peeled and sliced into 1/8-inch slices, 1/3 cup canola oil (extra light olive oil), and more.

Yes, Sweet Onion & Apple Upside Down Cake falls under the Baking & Desserts category and is a great choice for this type of meal.

Store in an airtight container at room temperature for up to 3–5 days. For longer storage, freeze for up to 3 months — no need to refrigerate or reheat.

That's it — enjoy your meal!

Sweet Onion & Apple Upside Down Cake

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions