Have long found this recipe in some food source of Belorusian cuisine, and found it was under this name, and therefore to not change anything)) the Soup looks delicious, rich and flavorful, prepared simply and not very long. I suggest you try my version here is a kind of "Solyanka")
Cod pour 1-1,5 liters of water and put on to cook, until tender.
Cabbage shinkuem and send it in a pan with 1 tbsp butter and 1 tbsp oil.
Add 50 ml of water and simmer over medium heat for about 10 minutes.
Add finely chopped onion (1 piece), simmer for another 10 minutes.
In tomato paste we breed vinegar, add sugar, salt and pepper to taste. Add the resulting mixture to the cabbage.
Stew under the lid until ready.
At this time, in a dry pan fry the flour until Golden brown.
Add it to the finished cabbage and leave to stew for 5 minutes, remove the pan from the fire.
And in parallel, fry the second onion in 1 tablespoon butter.
Ready broth filter, separate the fish from the bones.
Return the broth to the fire, add chopped potatoes, cook for 10 minutes.
Then add the peeled skin and cut into small cubes cucumbers and fried onions. Boil.
Last step, add the cabbage and the fish, bring to a boil and cook on low heat for 5-10 minutes.
When serving, sprinkle with the breadcrumbs.