Chop the onions, carrots and salted cucumbers into 1cm (about ½in) squares, keeping the cucumber separate.
2 medium onions, 1 large carrot, 150 g salted cucumbers (about 6 mini ones)
Chop all the fish into bitesize pieces, about 2.5cm (1in).
250 g fresh salmon, 150 g firm white fish like haddock, cod, 100 g smoked white fish (I used smoked haddock
Heat the oil in a pan over medium heat and sauté the onions and carrots for 5 minutes.
2 Tbsp vegetable oil
Add the salted cucumbers, bay leaf, black peppercorns and tomato purée, stir, and cook for 1 minute.
1 bay leaf, ½ tsp black peppercorns, 1 Tbsp tomato purée
Add the fish stock and bring to a boil. Lower the heat right down and simmer for 10 minutes.
750 ml good quality fish stock
Add the fish, olives and capers and cook for about 3 minutes, until the fish is cooked.
12 black olives, 12 green olives, 1 Tbsp capers
Add the lemon juice and white wine vinegar, stir and taste the seasoning. It shouldn't need any salt but if you think it does, add a pinch, or as needed. Turn the heat off.
2 Tbsp fresh lemon juice, 1 tsp white wine vinegar
Take 1 Tbsp of smetana or crème frâiche, lighten with a little bit of the soup in the ladle or in a small bowl. Mix thoroughly, then pour back into the soup in the saucepan, and mix, VERY GENTLY, as we don't want to break the fish up. Finish off with some freshly ground black pepper.
smetana or crème frâiche, freshly ground black pepper
Serve with the chopped dill, lemon slices and a spoonful of smetana or crème frâiche, with some fresh bread.
3 sprigs dill, 4 slices of lemon
Notes
The serving size indicates 4 as a main course, or 8 if you are serving it as a starter.