Wash the potatoes and cook covered for about 20 minutes. Boil 2 eggs hard. Quench potatoes and eggs, peel and let cool down.
Peel the onions. Chop 2 onions, sauté in hot oil. Stir in vinegar, mustard, 200 ml water and stock. Bring to the boil briefly. Season with salt and pepper. Cut potatoes into slices. Mix with the hot broth and add at least
Leave to stand for 30 minutes. Wash the chives, shake dry and chop finely. Fold into the potatoes.
For the tartar sauce, wash the parsley and dill and shake dry. Finely chop 1 onion, boiled eggs and gherkins. Mix everything with mayonnaise and season to taste.
Whisk 2 eggs. Wash the fish, pat dry, cut into 4 pieces and season. Turn in flour, egg and breadcrumbs one after the other. Bake in hot clarified butter on both sides until golden brown. Arrange everything.
Garnish with lettuce leaves and lemon.
Drinks tip: cool Pils.