Wash the potatoes and boil in water for about 20 minutes. Boil eggs for about 7 minutes until soft. Rinse and peel both.
In the meantime peel and finely dice the onion. Fry in hot oil. 1⁄8 Pour in l water, stir in broth. Mix with vinegar, salt and pepper. Cut potatoes into slices and mix immediately with the marinade.
Let it cool down.
Clean, wash, shake dry and cut the salad into strips. Pluck trout fillets into small pieces. Dice eggs. Mix potatoes and salad dressing. Carefully fold in remaining ingredients.