Wash the potatoes, cook in boiling water for about 20 minutes, drain, rinse and peel. Wash fish, dab dry, sprinkle with lemon juice and season with salt. Heat 2 tablespoons of fat in a pan. Fry the fish fillet in it for 3-5 minutes on each side, remove. Peel onion and cut into fine rings. Dice bacon finely.
Cut potatoes into slices. Heat 1 tablespoon of fat in a large frying pan. Leave the bacon cubes out at medium heat. Add potato slices and fry until crispy for about 10 minutes. Cut the fish into bite-sized pieces. Slide potato slices to the edge. Melt 1 tablespoon of fat in the pan. Sauté the onion in it. Add the fish and mix with the potatoes. Stir mustard and cream until smooth, pour into the pan. Cover and leave to stand for 5-10 minutes.
Slide potato slices to the edge. Melt 1 tablespoon of fat in the pan. Sauté the onion in it. Add the fish and mix with the potatoes. Stir mustard and cream until smooth, pour into the pan. Cover and leave to stand for 5-10 minutes. Wash parsley, dab dry and chop finely. Cut the gherkins into slices. Season fish pan with a little salt and pepper. Fold in gherkins. Serve sprinkled with parsley
Wash parsley, dab dry and chop finely. Cut the gherkins into slices. Season fish pan with a little salt and pepper. Fold in gherkins. Serve sprinkled with parsley