Email to becky sims Onion Sauce Source of Recipe 1950's better homes and gardens cookbook List of Ingredients Instructions Brown 2T. sugar in 1T. fat; add 2 medium onions, sliced; cook until almost tender. Add 1T. enriched flour; brown slightly. Add 1T. vinegar, salt; cook till smooth. Makes: 2 cups. Final Comments Goes with Beef and Onion Sauce recipe found in this section.