How to make
In boiling water, make broth from fish offal, add the chopped onions, carrots, celery, potatoes, and after they boil a bit - the tomatoes, cut into small cubes.
Along with the potatoes, put the fish in the broth, cleaned of the skin and bones and cut into portions. Add black pepper and bay leaf, boil for about 25 minutes. Thicken the finished soup carefully, so as not to curdle the mixture of eggs and milk.
Add a piece of fresh butter to the broth. When serving, it is best if the broth cooked with one kind of fish is served with meat portions of another kind of fish. Serve with a lemon slice.
