Old Fashioned Cooked Dressing
["1 egg yolk", "1 Tbsp. milk", "3/4 tsp. flour", "3/4 tsp. cornstarch", "1/3 c. sugar", "1/3 c. milk", "1/3 c. vinegar", "1/2 tsp. salt", "1 Tbsp. margarine"]
["Beat egg yolk lightly in a small saucepan. Mix together in 1 cup milk, flour and cornstarch. Mix this will the egg yolk. Add sugar and mix; add 1/3 cup milk and mix. Add vinegar and mix. Bring all to a boil, stirring constantly. Remove from heat and add salt and margarine. Mix and let cool, then refrigerate. This is a good dressing for Waldorf salad, fruit salad or slaw. For slaw, add 1/4 teaspoon dry mustard to the dressing. Makes 1 cup."]
["egg yolk", "milk", "flour", "cornstarch", "sugar", "milk", "vinegar", "salt", "margarine"]