Vinegar Pie
["1 stick margarine, melted and cooled", "1 1/2 c. sugar", "2 Tbsp. flour", "1 Tbsp. vanilla", "2 Tbsp. vinegar", "3 eggs", "9-inch pie shell"]
["Combine first 6 ingredients, blending well; pour in pie shell. Bake at 300\u00b0 for 45 minutes."]
["margarine", "sugar", "flour", "vanilla", "vinegar", "eggs", "pie shell"]