Wash potatoes and cook covered in water for about 20 minutes
Wash the fish, pat dry and sprinkle with lemon juice. Peel and finely chop the onion. Clean, wash and chop the vegetables
Fry the onion in hot oil until transparent. Steam vegetables briefly. Add 1/8 l water, stir in broth. Season with salt and pepper. Put fish on the vegetables and salt. Cover and steam for 12-15 minutes
Wash the chives and chop finely. Mix with sour cream, mustard, capers and about 2 tbsp. of the stock. Season to taste. Drain and peel the potatoes. Arrange everything
To absorb sufficient iodine (important for thyroid function), you should eat sea fish once a week and always use iodized table salt