Cook together two tablespoonfuls each of butter and flour and add one cupful of cream in which the yolks of two eggs have been beaten. Cook until very thick, stirring constantly. Take from the fire, add a pound can of salmon, flaked, salt and pepper to season, and a teaspoonful of minced parsley. Stir in the beaten whites of the eggs and cool. Shape into croquettes, dip in egg and crumbs, fry in deep fat, and serve with Tomato Sauce.