Beat the butter or margarine with the hand mixer on the highest setting until smooth. Gradually stir in the sugar and vanilla sugar and stir until a bond has formed. Gradually stir in the eggs.
Mix the flour with the baking powder, stir in portions alternately with the milk on a medium setting. Cut the chocolate bar and the children`s bars into small cubes and stir into the batter.
Fill the dough in paper cases in the muffin tin to a good 2/3 full. Bake the muffins at 180 - 200 ° C top / bottom heat for about 15 - 20 minutes.
Sometimes I put Toffifee, Wunderbar or similar things in the middle, which makes me particularly happy!