Beat the butter, sugar, vanilla sugar, eggs and milk with the hand mixer to a smooth mass. Add the flour with the baking powder and stir in.
Peel and core the apples and cut into small pieces. Mix into the batter.
Spread the dough tablespoon at a time on the baking sheet lined with baking paper. Bake at 180 ° C top / bottom heat for approx. 20 minutes. Sprinkle with powdered sugar after baking.