1 (1 pound) sweet potato (makes about 1.5 c mashed)
½ cup butter, softened
2/3 cup sugar
1/2 cup milk
1/2 teaspoon ground nutmeg
1/2 teaspoon ground cinnamon
1 teaspoon vanilla extract
1 (9 inch) unbaked pie crust
1. Wash and bake the potato or peel, chunk, and boil sweet potato until soft.
2. Mash sweet potato (without skins) in a bowl. Add butter, and mix well with mixer. Stir in sugar, milk, eggs, nutmeg, cinnamon and vanilla. Beat on medium speed until mixture is smooth. Pour filling into an unbaked pie crust.
3. Bake at 350 degrees F for 55 to 60 minutes, or until knife inserted in center comes out clean. Pie will puff up like a soufflé, and then will sink down as it cools.