Cheese Sauce - cooking recipe

Ingredients

3 tablespoons butter
3 tablespoons flour
1 cup milk
American cheese (Cheddar, I use any cheese as long as it orange in color)

Preparation

In saucepan, heat butter, add flour.
Stir until light brown, about 3 minutes.
Add milk, bring to a slow boil.
Add cheese, one slice at a time.
Simmer to desired thickness (For thinner sauce, add less flour).