Coarsely chop the chocolate coating and melt it on a hot water bath. Let it cool down. Mix 6 tablespoons of milk with pudding powder and sugar. Boil up the rest of the milk. Pull the pot off the stove. Stir in pudding powder.
Bring the pudding to the boil while stirring and simmer for 1 minute. Stir in chocolate coating. Place cling film directly on the pudding and chill for 1 hour. Using the whisk of the hand mixer, whip the pudding for another 5 minutes until creamy. Pour into cappuccino cups and dust with cocoa