Chess Pie
["1 c. butter", "3 c. sugar", "6 eggs, well beaten", "1 Tbsp. vanilla", "2 Tbsp. vinegar", "1 pinch salt", "2 unbaked pie shells"]
["Cream butter and sugar; add beaten whole eggs and add vanilla, vinegar and salt.", "Pour into unbaked pie shell.", "Start cooking at 300\u00b0; raise heat in 10 minutes to 350\u00b0.", "Cook for 45 minutes. Makes 2 pies."]
["butter", "sugar", "eggs", "vanilla", "vinegar", "salt"]