Clean and wash the soup greens and cut them into fine sticks. Wash the parsley, dab dry and remove the leaves. Except for a few leaves for garnishing, chop finely
Heat butter in a pot, sauté soup greens in it, deglaze with broth, cover and stew for 5-7 minutes. Pour off, rinse with cold water and let it cool down a little
In the meantime cut the cheese into fine sticks for the dressing. Mix 2 tablespoons vinegar, salt, pepper, sugar and mustard. Fold in 3 tablespoons of olive oil. Pat the crab meat dry
Mix half of the soup vegetables with crayfish and half with North Sea crabs. Mix in 1/2 tbsp. olive oil and half of the parsley. Season to taste with salt, pepper and 1/2-1 tbsp vinegar and arrange separately on plates and in small bowls.
Lavez l'aneth, séchez-le, arrachez les fanions et hachez-les finement. Mélanger l'aneth et le fromage dans la marinade. Versez un peu de vinaigrette sur le duo. Garnir de persil