Cooked Salad Dressing
["1/2 c. vinegar", "1/2 c. sugar", "2 Tbsp. cornstarch", "1 Tbsp. flour", "1 egg", "salt and pepper", "1/2 c. water", "1 tsp. butter or oleo", "1 tsp. prepared mustard"]
["Blend all ingredients except butter and mustard.", "Cook over low heat until smooth and thick.", "Remove from heat; add butter and mustard.", "Stir until blended.", "Use as dressing for potato salad."]
["vinegar", "sugar", "cornstarch", "flour", "egg", "salt", "water", "butter", "mustard"]