Vincente's Macaroni and Cheese

By ladykeys

4.05 / 5

10min

25min

See on AllRecipes

1 (8 ounce) box elbow macaroni
1 tablespoon butter
1 small onion chopped
2 tablespoons all-purpose flour
1 teaspoon dry mustard
¼ teaspoon salt
1 cup milk
1 ½ cups grated sharp Cheddar cheese
1 pinch ground black pepper