Ukha refers to Russian fish soup known as the Mother of all Russian soups. Ukha ismade from fresh fish with spices. Small fishes like ruffs, perches were used to make soup strong and to give it a specific smell. Boiled tenches, sheat-fish, burbots were added in an already cooked soup to make it "sweet and tender". Cinnamon, cloves and pepper were principal spices. It is not difficult to cook Ukha. But real Ukha must be cooked on the fire or at least on the oven.