Sour Cream Cheese Sauce

Description
This version of cheese sauce is mixed with sour cream for extra zest.

Ingredients

 * 4 tablespoons margarine
 * 1 ½ cup milk
 * 1 cup cream cheese, optional
 * 1 cup grated cheese (Cheddar, Swiss, Parmesan, or Colby) or 2 cups cheese sauce
 * ¼ cup flour
 * 1 cup sour cream

Directions

 * 1) Stir in ¼ cup flour with 4 tablespoons margarine; add gradually while stirring.
 * 2) Cook until mixture thickens. Add 1 ½ cup milk, 1 cup cream cheese (if desired), 1 cup grated cheese (or 2 cups cheese sauce), and 1 cup sour cream to the flour-margarine mixture.
 * 3) Cook until cheese simmers. Pour into a bowl. Serve hot and use as a dip.