Peel, wash and slice the carrots. Clean, wash and cut the savoy cabbage leaves from the stalk. Carefully brush and wash the black salsify, peel, cut into pieces and immediately place in plenty of water mixed with vinegar and flour.
(It is best to work with gloves on.) Drain black salsify and cut into slices. Boil 1 1/4 litre of water with broth. Cook prepared vegetables in it for about 15 minutes. Roast caraway seeds in a pan without fat, remove.
Wash the salmon, dab dry, dice and finely puree in the universal chopper. Stir in egg yolk and season with salt, pepper and lemon juice. Form salmon mixture into dumplings with 2 teaspoons and cook in boiling salt water for approx. 3 minutes, remove and drain.
Season soup with caraway seeds, salt and pepper. Serve and garnish with dill.