For the dumplings, mix the fat with the whisk of the hand mixer until foamy. Stir in eggs one after the other, season with salt and nutmeg. Mix 400 g flour with baking powder, sieve and add.
Stir in the milk. Knead dough with the dough hooks of the hand mixer until bubbles appear. Halve the dough and form 2 rolls with floured hands. Leave to stand in boiling salt water at low heat for 25-30 minutes.
Peel and chop the onion. Clean and trim the mushrooms and halve them according to size. Peel, clean and slice carrots. Cut sausage into slices. Heat oil in a large pan or a frying pan.
Fry the sausage for about 10 minutes while turning. After 5 minutes add mushrooms and onion. Finally add carrots. Dust with 1 tablespoon of flour. Add cream and stock. Bring to the boil and simmer for 1 minute while stirring.
Season to taste with salt, pepper and sugar. Wash parsley, shake dry, pluck leaves from the stalks and chop. Cut the dumplings into slices with a twine. Arrange dumplings and ragout on plates and sprinkle with parsley.