Boil 400 ml milk. Mix pudding powder, 3 tablespoons of sugar and 50 ml milk. Remove milk from the stove, stir in custard powder and bring to the boil again. Let the pudding cool down a little, fold in sour cream and fill into glasses.
Let it cool down. Just before serving, put the frozen berries into a mixing bowl and let them thaw a little. Add the liqueur and 2 tablespoons of sugar and crush a little with a blender. Spread on the pudding
1 hour waiting time