2 tablespoons reduced-fat margarine
1 tablespoon all-purpose flour
1/4 teaspoon salt
2/3 cup skim milk
1 egg yolk
1/2 teaspoon grated lemon peel
2 teaspoons lemon juice
Heat margarine in 1-quart nonstick saucepan over low heat until melted. Stir in flour and salt. Cook over low heat until mixture is smooth and bubbly, stirring constantly; remove from heat. Mix milk and egg yolk until smooth; stir into flour mixture. Heat to boiling, stirring constantly. Boil and stir 1 minute. Remove from heat; stir in lemon peel and lemon juice
From "Betty Crocker's Best of Healthy & Hearty Cooking." Text Copyright 1998 General Mills, Inc. Used with permission of the publisher, Wiley Publishing, Inc. All Rights Reserved..