01 -
Use a large sheet of parchment paper to line the sides and bottom of an 8-inch or 9-inch square pan, ensuring it's a single sheet for easy cake removal.
02 -
Add chopped strawberries and unsweetened applesauce to a blender. Blend on high speed until the strawberries are fully pureed and the mixture appears uniform in color.
03 -
Transfer the puree to a large heat-proof mixing bowl. Evenly sprinkle gelatin across the surface and whisk until fully incorporated. The mixture will thicken and become chunkier.
04 -
Using a double boiler on the stove, dissolve the gelatin completely. Ensure the mixture becomes thinner and more liquid while staying warm but not hot. Avoid boiling. Remove from heat and allow it to cool for 10 minutes at room temperature.
05 -
Pour the mixture into the bowl of a stand mixer with a wire whisk attachment. Beat on the highest speed for about 15 minutes until it quadruples in volume and resembles airy whipped cream. The whisk should hold a soft peak when lifted.
06 -
Carefully pour the whipped mixture into the prepared pan. Use a spatula to smooth the surface evenly.
07 -
Place the pan in the refrigerator for at least 1 hour to allow the cake to set before serving.
08 -
Keep the cake refrigerated until ready to serve. Optionally decorate with whipped cream frosting or other frosting. Slice with a sharp knife and serve chilled. Store leftovers in the fridge.