Cook the pudding with milk and sugar according to the instructions on the packet, then let cool while stirring. Beat the sweet cream until stiff. If you take a chocolate Easter bunny, Santa Claus or half a bar of chocolate, you have to chop them into fine pieces with a knife.
When the pudding has cooled down, fold in the cream. Finally stir in the chocolate flakes and rum.
If necessary, place in the refrigerator again until consumption.