For the sauce, drain anchovy fillets and capers separately. Crush 2/3 of the fillets finely and mix with mayonnaise, yoghurt and lemon juice. Season the sauce with salt and pepper to taste.
Stir in the capers, except for 1 tablespoon. Cut remaining anchovy fillets into long strips. Clean, wash and drain the salad. Bring 1 litre of water and vinegar to the boil. Beat the eggs one by one into a cup and carefully slide them into the no longer boiling vinegar water.
Let the eggs simmer for about 8 minutes, while they are cooking, use 2 spoons to place the egg white around the egg yolk so that the poached eggs get a nice shape. In the meantime, toast bread in the toaster.
Spread each slice with 1 tablespoon of fat and spread the salad leaves on top. Remove the eggs with a skimmer and let them drain. Place 2 eggs on each slice of toast. Pour some sauce over the eggs and sprinkle with the remaining anchovy fillets, capers and a little lemon pepper.
Wash the dill, pluck the flags and sprinkle over it. Add the rest of the sauce.