Sweet Potato Pie
["1 (9-inch) unbaked pie shell", "3 eggs", "2 c. sugar", "1/8 stick margarine", "1 small can evaporated milk", "1 tsp. vanilla", "1 c. mashed sweet potatoes", "1/2 to 1 c. coconut (optional)"]
["Combine all filling ingredients together; pour into unbaked pie shell.", "Bake at 350\u00b0 for approximately 1 hour or until inserted toothpick comes out clean."]
["shell", "eggs", "sugar", "margarine", "milk", "vanilla", "mashed sweet potatoes", "coconut"]