Bring the milk, cinnamon stick, vanillin sugar, sugar and lemon peel to the boil. Add rice pudding and cook over low heat for about 50 minutes. Stir in between. Let the rice pudding cool down.
In the meantime defrost the berry cocktail. Stir half into the fruit sauce. Carefully fold the remaining berries into the rice pudding. Cut off with 2 spoons of dumplings. Arrange on plates with the sauce.
Serve decorated with melissa.