cups uncooked elbow macaroni (about 6 ounces)
cup margarine or butter
small onion, chopped
cup all-purpose flour
ounces sharp american or Swiss cheese.
Cook macaroni as directed on package Cook and stir margarine, onion, salt and pepper over medium heat until onion is tender. Stir in flour Cook over low hear, stirring constantly, until mixture is smooth and bubbly; remove from heat Stir in milk. Heat to boiling, stirring constantly. Boil and stir 1 minute. Remove from heat stir in cheese until melted Add macaroni.