CAKE-PIE “POTATO”

For cakes:300g kefir250 g. sugar2 eggs2 tablespoons butter, softened3 tbsp cocoa1 tsp baking soda (no slide)2 stacks flour1/2 tsp salt Separate the yolks from the proteins. Add salt, sugar, butter to the yolks and beat well until fluffy, while continuing to beat, pour in kefir (you can replace it with yogurt). Sift flour, soda and cocoa…