Nacho Cheese Sauce - cooking recipe

Ingredients

2 tablespoons margarine
2 tablespoons flour
1/2 teaspoon dry mustard
1/8 teaspoon cayenne
1 cup milk
1 cup shredded nacho cheese

Preparation

Melt margarine in saucepan.
Add dry ingredients and whisk for a couple of minutes.
Add milk gradually and whisk until slightly thickened, about 5 minutes.
Add cheese gradually and stir to melt.
Note -- the original recipe called for shredded cheddar. I chose a blend containing cheddar, mozzarella and jalapeno peppers. It adds more zing.