How to make
Beat the eggs' yolks and whites separately with the sugar, divided equally. Pour the baking soda into the yogurt and add to the flour with the eggs and oil. Stir well.
Add the grated apples, to which you've added some crumbled biscuits to absorb the moisture from the apples.
If desired, add raisins, nuts and cocoa. Bake in a moderately preheated oven.