Chess Pie
["1 stick butter or margarine", "1 1/2 c. sugar", "1 Tbsp. cornmeal", "1 Tbsp. vinegar", "4 eggs (add 1 egg at a time)", "dash of salt", "1 tsp. vanilla"]
["Mix ingredients in order given.", "Pour into a 9-inch crust and bake in 300\u00b0 to 325\u00b0 oven about 30 minutes or until firm."]
["butter", "sugar", "cornmeal", "vinegar", "eggs", "salt", "vanilla"]