This Sugar-Free Low Carb Sponge Cake is also keto, gluten free and nut free with all the traditional flavors and textures of a sponge cake. A sponge cake is basically just a very light and airy cake made with eggs, flour and sugar, but this recipe is low carb and just as delicious as it's higher carb cousin!
Ingredients needed to make sugar free sponge cake. Flour- 1 ½ cups. Using a cake flour will make a less dense cake thanks to the lower protein. Salt- ½ teaspoon. Baking Powder - 1 ½ teaspoon. Eggs- 6 separated. The eggs should be allowed to sit out for about 45 minutes before separating. Cream of tartar- ¾ teaspoon. Sugar Alternative - 1 ¼ cups.
Because sponge cakes are a simple and delicate cake, they are popular as a tea or coffee snack. This is a basic sponge cake that can be made with no butter and will also be known as fatless sponge. If you soak the cake in simple syrup first, it becomes more moist, while if you apply a thin layer of simple syrup, it becomes soggy.
Sugar Free Sponge Cake. Sponge cake got it’s name because, of course, it resembles a sponge. However, while you can eat a cake, you cannot eat a sponge. Except if that sponge is a sponge cake. A sponge cake is a pretty basic cake. A basic sponge cake has eggs, butter, flour along with a few other ingredients.