• 4 tablespoons butter or margarine
• 4 tablespoons all purpose flour
• 1/2 teaspoon salt
• 1/2 teaspoon pepper
• 2.5 cups milk
• 2 cups shredded cheese

In a medium saucepan melt margarine. Stir in flour, salt and pepper. Add the milk and whisk over medium heat until thickened and bubbly. Add cheese and cook another two minutes.