Here is the recipe;
4 eggs, separated
equivalent of 1 cup of sugar replacement. I used a stevia type that was twice as sweet as sugar, so I used 1/2cup. I would suggest using a granular type instead of liquid drops to help with the bulk and texture.
1/4 cold water
1 tsp vanilla
1/3 cup cold old fashioned oats
about 2/3 cup almond flour
1 tsp baking powder
1/2 tsp salt
Beat egg yolks with sugar until light in colour. Beat in water and vanilla. Grind oats in a coffee grinder, pour into a 1 cup measure. Add enough almond flour to fill cup. Stir dry ingredients into egg yolk mixture.
Beat egg whites until stiff. Fold into yolk mixture. Pour into a greased 8x8 pan and bake at 325 degrees for 30 minutes. It makes 8 servings.
I like to eat this cake cold from the fridge with strawberries and whipped cream, both sweetened with stevia. I want to try in next time with a chocolate cream cheese icing.