Vinegar Pie
["3 eggs", "1 1/2 c. sugar", "1 stick margarine, melted", "1 Tbsp. white cider vinegar", "1 tsp. vanilla", "1 unbaked pie shell (9-inch)"]
["Beat eggs; add sugar and cooled margarine.", "Add vinegar and vanilla; blend well.", "Pour mixture into pie shell and bake 10 minutes at 300\u00b0.", "Increase heat to 325\u00b0 and continue baking for 30 minutes."]
["eggs", "sugar", "margarine", "white cider vinegar", "vanilla", "unbaked pie shell"]