Softened butter may be flavored with anchovy or sardine paste, or with lemon juice and finely minced watercress, devilled ham, horseradish or prepared mustard. The butters may be used as a filling for sandwiches or as a spread for canapes, the term used for open sandwiches. Canapes should be garnished with sliced stuffed olives, sliced ripe olives, minced dill pickles, parsley or strips of pimiento.