Clean, wash and chop the rhubarb. Sprinkle with 100 g sugar, let stand for 20 minutes
In the meantime, mix 50 g of soft fat, 2 tablespoons of sugar and 1 packet of vanillin sugar. Stir in quark, eggs, 1 pinch of salt, flour, semolina and sour cream. Cut the rolls into small cubes and fold in. Leave to stand for about 1 hour.
In the meantime, mix starch and 3 tablespoons of juice until smooth. Bring the rest of the juice, 1 packet of vanilla sugar and rhubarb to the boil, simmer for about 5 minutes. Bind with starch, let cool down
Form 12 dumplings from the dough. Cook in lightly salted, boiling water for about 15 minutes and drain. Serve everything. Melt 25 g fat and spread over the dumplings. Mix 2 tbsp. sugar and cinnamon and sprinkle over the dumplings