Clean and wash the rhubarb and cut it diagonally into pieces about 1 cm long. Stir red berry powder, sugar and 3 tablespoons of water until smooth. Bring 250 ml water to the boil. Cook the rhubarb in it for 6-8 minutes until it falls apart. Stir in the mixed powder, bring to the boil again briefly.
Remove the pot from the stove, cover directly with a foil and let it cool down. Crumble the Amarettini. Arrange groats in bowls. Sprinkle with amarettini and sprinkle with some cream. Add the rest of the cream
45 minutes waiting time