The Best Potato Pie - cooking recipe

Ingredients

2 c. sugar
6 eggs, separated (save whites for top of pies)
4 Tbsp. cornstarch or flour
1 1/2 c. mashed sweet potatoes
3 c. evaporated milk
1 stick margarine
1 tsp. vanilla

Preparation

Cook in double boiler until thick.
Pour into baked pie shells (2 large). Top with whipped egg whites and 1/4 cup sugar.
Bake at 300\u00b0 until brown.