For the filling, mix cottage cheese, eggs, sugar, starch or semolina. Everything is carefully, it is better to beat.
For the dough, beat eggs with sugar with a mixer into a fluffy foam.
Add sour cream, baking soda and melted butter. Mix it.
Add flour and cocoa. Knead the cheesecake dough.
Grease the mold with any oil. Pour out part of the dough, distribute. Pour the curd mass and the rest of the dough on top. You can spread the dough on cottage cheese with a spoon, then you will get a marble cheesecake.
Bake in a preheated 200 degree oven for 30-40 minutes. Have a nice tea)))