Aunt Mozelle'S Chess Pie
["1 stick butter", "1 1/2 c. sugar", "1 Tbsp. vinegar", "4 eggs", "vanilla"]
["Melt butter.", "Add sugar and vinegar.", "Beat eggs.", "Add to mixture.", "Bake mixture 30 minutes or until firm in the middle of a 300\u00b0 oven."]
["butter", "sugar", "vinegar", "eggs", "vanilla"]