Chess Pie
["1 stick butter or margarine", "3 eggs", "1 1/2 c. sugar", "1 Tbsp. vanilla", "1 tsp. vinegar"]
["Melt butter; add sugar and eggs.", "Stir in vanilla and vinegar. Pour into unbaked pie shell.", "Bake at 350\u00b0 for 30 to 40 minutes or until top is golden brown and crust is done."]
["butter", "eggs", "sugar", "vanilla", "vinegar"]