For the rum cherries, mix nectar and 5 tablespoons of rum. Wash and drain the cherries and place them with stems in the nectar. Leave to stand for about 2 hours.
In the meantime, stir the pudding powder with 5 tablespoons of sugar and 6 tablespoons of milk until smooth. Boil up the rest of the milk, stir in the pudding powder and simmer for at least 1 minute, stirring continuously. Pour the pudding into a bowl. Place cling film directly on the surface and let the pudding cool down.
Roughly chop the chocolate and put aside about 5 tbsp. for sprinkling. Whip the cream until stiff, while pouring in 4 tbsp. sugar. Finally stir in 3 tbsp. rum. Stir the pudding well with a whisk. Loosely fold the chocolate and rum cream into the pudding so that streaks of cream remain. Divide into glasses (approx. 300 ml each) and sprinkle with the remaining chocolate. Serve with rum cherries.