For the dumplings melt 100 g butter and let it cool down. Mix with low-fat curd cheese, 1 tablespoon sugar, vanilla sugar and 1 pinch of salt. Stir in 100 g flour by the spoonful. Let the dumpling mixture rest for about 20 minutes.
Meanwhile, boil up the nectar and 4 tablespoons of sugar for the groats. Stir starch with approx. 3 tbsp. water until smooth. Stir into the boiling nectar, simmer for about 2 minutes. Stir in frozen berries.
Bring plenty of salt water to the boil in a large pot. Form approx. 18 small dumplings from the quark mixture with moistened hands. Put them on a little flour and turn them carefully. Add dumplings in portions to the boiling water, simmer over low heat for about 5 minutes, lift them out and let them drain.
Briefly roast the poppy seeds in a pan without fat. Add 2 tablespoons of butter, melt and froth up. Swivel dumplings in the poppy seed butter, dust with icing sugar. Serve with berry groats.