Boiled Dressing
["2 tsp. butter", "2 tsp. sugar", "1 tsp. dry mustard", "2 beaten eggs", "2/3 tsp. salt", "1/3 tsp. pepper", "1 Tbsp. flour", "1 c. weak vinegar"]
["Put first 7 ingredients in double boiler and cook until mixture thickens.", "Then add vinegar and continue cooking 3 minutes longer.", "Chill and when ready to serve, thin with plain or whipped cream to suit taste."]
["butter", "sugar", "dry mustard", "eggs", "salt", "pepper", "flour", "weak vinegar"]