Cheddar Cheese Sauce

Ingredients:
1/4 cup all-purpose flour 2 cups 1% low-fat milk 1 1/4 cups (5 ouces) shredded sharp cheddar cheese

Preparation:
Lightly spoon flour into a dry measuring cup; level with a knife. Place flour in a medium, heavy saucepan; gradually add milk, stirring with a whisk until blended. Place over medium heat; cook until thick (about 8 minutes), stirring constantly. Remove from heat; add cheese, stirring until melted.
Serving size: 1/2 cup

Source: Recipe