Peel and chop the onions. Cut the smoked pork into cubes. Heat 2 tablespoons of oil and fry the diced Kasseler for about 6 minutes while turning. After about 3 minutes add half of the onions. Place the sauerkraut in a sieve, drain and press out lightly. Add to the Kasseler, season with salt, caraway and sugar. Braise in a closed pot for about 20 minutes, stirring occasionally
Dice the buns. Heat 2 tablespoons of oil in a frying pan. Fry the bread cubes for about 4 minutes while turning. Take out, put 1 tablespoon of oil in the pan and fry the remaining onions and ham for about 5 minutes. Wash parsley, shake dry, pluck leaves from the stalks and chop finely. Coarsely grate Gouda
Knead dumpling dough, ham pan, parsley and bread cubes. Form into 12 dumplings. Put the sauerkraut into a casserole dish or roaster. Place dumplings on top, pour cream over them and sprinkle with cheese
Bake in a preheated oven (electric cooker: 175 °C/ circulating air: 150 °C/ gas: see manufacturer) for approx. 1 hour