Form the sausage meat into dumplings. Fry in oil, drain.
Dice carrots and onions, sauté in fat, cook with stock.
Remove about one third of the carrots after 5 minutes. Grind the rest in the stock, pass through a sieve and return to the pot.
Stir sour cream or crème fraiche, wine and flour, simmer in the soup for 5 min. Pour in carrots and dumplings, season. Garnish with cress