Carp is washed and cleaned of scales. Cut into washers, add salt and set aside. Onions and carrots are peeled and sliced. Grate the lemon peel is. Chopped vegetables mixed with grated lemon rind and place the bottom of the pan. On them put the pieces of carp, add cloves and bay leaf, and 3/4 of beer. Container, cover and leave on low heat for about 20 minutes. Meanwhile, fry the flour in the butter and add the rest of the beer. Acetic and poured into carp. After the carp is finished is removed from the dish and keep warm. Sauce and passaged it watered pieces carp.