Clean or peel and wash the vegetables. Divide cabbage into florets. Quarter kohlrabi and cut into slices. Boil 1/2 l water and broth. Covered carrots and cauliflower and stew for about 15 minutes. Steam Romanesco and kohlrabi for 8-10 minutes
Wash the fish, swab. Fry in 2 teaspoons of hot butter on each side for 4-5 minutes, season. Peel and chop the shallots. Sauté in 30 g hot butter. Dust with flour, sweat on
Drain vegetables, collect 200 ml of stock. Stir in the stock, milk, cream and wine, bring to the boil. Simmer for about 5 minutes. Add lemon zest and juice, season to taste
Wash and pluck the chervil (chop parsley). Arrange vegetables with salmon fillet and sauce on a plate. Sprinkle with the chervil leaves. Serve with croquettes