For the Chocolate Muffin Burger with Honey Bananas, first preheat oven to 180 °C top/bottom heat.
Mix flour with baking powder, cocoa powder and salt. Beat eggs, mix with butter, powdered sugar, vanilla sugar and milk. Stir flour mixture and chopped chocolate coating into egg-sugar-butter mixture. Pour batter into prepared muffin tins (no more than 2/3 full!) and bake in preheated oven for about 15-20 minutes.
Peel bananas. Mix in honey with a fork. Slice finished muffins once, fill in banana cream and reassemble. Serve chocolate muffin burgers with honey bananas.