Ingredients:
Shortcrust pastry:
200 g butter (hard)
5 egg yolks (set aside the whites for the cheese mixture)
2-3 tablespoons of sour cream
3 tablespoons of sugar
1 vanilla sugar
2 teaspoons of baking powder
about 3 cups of wheat flour
3 tablespoons of cocoa
a pinch of salt
Cheese mass: