Mix the margarine with the sugar. Add the eggs and stir everything until frothy. Peel the bananas and mash them in a plate with a fork, then stir into the foam mixture. Mix the flour with baking powder and cocoa and stir in gradually. Finally fold in the chocolate pieces. Pour the batter into the muffin molds and bake at 180 ° C for about 17 minutes.
You need 200-250 g of chocolate. B. a little and a normal Santa Claus. You can of course also use any other chocolate.
When the muffins have cooled, coat with couverture and sprinkle with black and white chocolate sprinkles.