5 ounces (1 1/4 cups) uncooked dried elbow macaroni
2 tablespoons Land O Lakes® Butter
2 tablespoons all-purpose flour
1 teaspoon dried mustard
1/2 teaspoon onion powder
2 cups Land O Lakes® Half & Half
10 (3/4-ounce) slices Land O Lakes® Deli American Cheese, quartered
1/3 cup crushed cornflakes
Heat oven to 350°F. Cook macaroni according to package directions. Drain.
Melt butter in 3-quart saucepan until sizzling; stir in flour, mustard and onion powder. Add half & half; cook over medium heat, stirring constantly, 5-7 minutes or until mixture boils and thickens.
Reduce heat to low; stir in cheese. Cook 3-5 minutes or until cheese is melted. Add cooked macaroni; mix well.
Spoon into ungreased 2-quart casserole dish. Sprinkle with cornflakes. Bake 30-35 minutes or until heated through.