SWEET POTATO PIE

1 1/2 cups mashed cooked sweet potatoes

1 1/2 cups sugar

2 1/2 tablespoons butter or margarine, softened

2/3 cup evaporated milk

3 egg yolks, beaten

1 teaspoon vanilla extract

1 teaspoon ground nutmeg

3 egg whites

1 unbaked 9-inch, deep dish pastry shell

Combine sweet potatoes, sugar, and butter; stir well. Stir in milk, egg yolks, vanilla, and nutmeg; set aside.

Beat egg whites (at room temperature) at high speed of an electric mixer until stiff peaks form. Fold beaten egg whites into sweet potato mixture. Pour mixture into unbaked pastry shell. Bake at 375 degrees for 10 minutes; reduce heat to 350 degrees, and bake 45 minutes or until set.

Makes one 9-inch deep dish pie.