Add applesauce and gelatin to a large heat-proof mixing bowl. Whisk until gelatin is fully incorporated. The gelatin powder should make your applesauce thick and a little chunky.
Using the double boiler method on the stove, dissolve the gelatin completely. When the gelatin is dissolved, your mixture should become thinner and smoother. The applesauce should feel warm to the touch, but not hot. Be careful to not let the mixture get hot or boil. Remove bowl from stove and let it sit for about 5 minutes to cool to room temperature.
Pour applesauce mixture into the bowl of a stand mixer. Using the wire whisk attachment, beat on highest speed for about 15 minutes. Your mixture should more than triple in volume and should look like airy whipped cream. When you stop your mixer, your wire whisk should be able to hold a soft peak. See photo in post for reference.
Pour applesauce mixture into your prepared pan. Use a spatula to spread it evenly across and smooth the surface. Place into fridge for at least 1 hour to set.
Keep the cake in the fridge until ready to serve. Before serving, you can first decorate the cake with whipped cream or other frosting. Slice cake with a very large and sharp knife. The cake is best served chilled. Store any uneaten cake in the fridge.
Notes
This recipe must be made with unsweetened applesauce. Sweetened applesauce will not work because the added sugar makes the cake batter too dense and moist. See post for more details of other potential flavors.
This berry cloud cake is tart from the berry applesauce. It doesn’t really have much sweetness to it. If you are on a low sugar diet, I don’t think you will mind. The cake is flavorful even though it’s not sweet.
If you want to add sweetness, it has to be in the form of the frosting. I made a whipped cream frosting lightly sweetened with sugar. The whipped cream can also be sweetened with stevia or other sugar substitutes.
I recommend using a stand mixer if you have one to mix this. You do need to whip the batter for about 15 minutes on highest speed and it’s just easier to do with a stand mixer. There is also less splatter because a stand mixer bowl is generally deeper.
The double boiler method is a stovetop method used to heat up your applesauce mixture using indirect heat. Use a saucepan that is smaller than your mixing bowl and add about 1 inch of water and bring to a simmer. You want to choose a saucepan where you will be able to place the bowl on top that fits snugly and won't touch the water in the saucepan. Once the water has reached a simmer, place your mixing bowl on top. Stir applesauce mixture with whisk to dissolve the gelatin as the mixture begins to heat up. Be careful to not let the mixture boil or get too hot.
For the whipped cream frosting, add 1 cup of cold heavy cream and 3 tbsp of sugar to a large mixing bowl and beat on highest speed until stiff peaks form. You can add more or less sugar to taste. You can substitute the sugar with stevia or other sugar substitutes. You can also use Cool Whip instead.
I used Mott's no sugar added Mixed Berry Applesauce
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.