Baked Macaroni And Cheese
["2 Tbsp. cornstarch", "3/4 tsp. salt", "1/4 tsp. pepper", "3/4 tsp. dry mustard", "2 1/2 c. milk", "3 Tbsp. margarine", "1 1/2 c. shredded cheese", "8 oz. pkg. elbow macaroni, cooked", "bread crumbs (optional)"]
["Combine dry ingredients in pan.", "Stir in milk until smooth. Add margarine.", "Bring slowly to boil, stirring.", "Boil 1 minute. Off heat, stir in cheese until melted, then macaroni.", "Pour into buttered casserole; top with crumbs.", "Bake uncovered at 375\u00b0 for 25 minutes."]
["cornstarch", "salt", "pepper", "dry mustard", "milk", "margarine", "shredded cheese", "elbow macaroni", "bread crumbs"]