Cut sausages into small pieces, chop onions, dice potatoes, slice carrots, cut leeks into rings.
Fry the sausages in butter, add the onions and cook briefly until soft. Dust with flour and extinguish 0.5 liters of clear soup.
Make remaining clear soup with vegetables 10 min, then add sausage-onion mixture. Add the processed cheese and let it melt. Finally add the whipped cream and do not make more. Season to taste.