Alfredo Sauce

2 tablespoons margarine
1-1/2 cups evaporated 1 tablespoon flour
¼ teaspoon salt
1/8 teaspoon pepper
2 tablespoons freshly
grated parmesan cheese
½ teaspoon freshly grated
nutmeg

Melt margarine in 3-quart saucepan over medium-high heat. Mix milk, flour, salt and pepper until smooth; pour into saucepan. Heat to boiling, boil 1 minute, stirring frequently with wire whisk; remove from heat. Stir in cheese and nutmeg.