Vinegar Pie
["4 eggs", "1 1/2 c. sugar", "1 tsp. vanilla", "1/4 c. butter, melted", "1 1/2 tsp. white cider vinegar", "1 pie shell, unbaked"]
["Preheat oven to 350\u00b0.", "Mix eggs, sugar, butter, vinegar and vanilla.", "Bake in pie shell until firm, about 45 to 50 minutes. Garnish with chopped nuts or whipped cream."]
["eggs", "sugar", "vanilla", "butter", "white cider vinegar", "pie shell"]