2 tbsp. flour
1 tsp. salt
3/4 c. skim milk
2 tbsp. lemon juice
2 tbsp. sugar
1 tsp. dry mustard
2 egg yolks, slightly beaten
2 tbsp. vinegar

In small saucepan combine flour, sugar, salt and dry mustard. Blend in milk gradually. Cook and stir over medium heat until thick or bubbly. Stir some of the mixture into the egg yolks. Return to pan and cook over low heat 1 minute. Stir in lemon juice and vinegar. Chill. Makes 1 cup. 22 calories per tablespoon.