Line the troughs of a muffin tin (12 troughs) with paper cups. Bring milk to the boil, remove from the stove. Cream butter, sugar and vanilla sugar. Stir in eggs one after the other. Mix cocoa, baking powder and flour, sieve onto the buttercream and stir in. Add milk and stir in briefly
Bake in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: see manufacturer) for about 25 minutes. remove muffins from the edge of the baking tray with a knife, let them cool in the tin on a cake rack
Chop chocolate for the icing. Heat the double cream and chocolate in a saucepan while stirring, do not let it boil. Stir until a smooth glaze is obtained. Take the muffins out of the tin. Pour on the icing, spread and let dry
waiting time approx. 2 hours