Dab the goulash dry, possibly cut a little smaller. Peel and chop onions. Heat the lard in a roaster. Fry the goulash well. Add onions and fry briefly. Season goulash with salt and pepper.
Stir in tomato paste, dust with flour. Deglaze with 1 1/4 litre water, add bay leaf and season with paprika. First braise for about 1 hour. In the meantime peel and quarter potatoes.
Add sauerkraut and potatoes to the goulash and braise for another 30 minutes. Season to taste with salt, pepper and sugar. Cut Cabanossi into diagonal slices. Heat the oil in a pan and fry the cabanossi over medium heat.
Cabanossi to the Szegedin goulash. Arrange the goulash on plates and put a blob of sour cream on each plate and sprinkle with paprika.