Peel and chop the onions. Knead 1/3 onion cubes with mustard, breadcrumbs, milk and minced meat, season with salt and pepper and form into small balls. Heat the oil in a large pot. Fry the meatballs for 6-7 minutes, turning them over and taking them out
In the meantime, dice the bacon. Fry the remaining onion cubes and bacon in hot frying fat, remove from the heat. Add the sauerkraut and meatballs, mix everything
Knead flour, baking powder, 1 teaspoon salt and 150-175 ml water to a smooth dough that does not stick. Form the dough into a roll (approx. 3 cm Ø) on a lightly floured work surface and cut into slices of approx. 1 1/2 cm thickness
Place the dumplings on the sauerkraut and press them flat if necessary. Pour 200 ml water over it and cook covered for about 30 minutes at medium heat
With 6 people: