Sweet Potato Pie

Ingredients:
- 2 c. cooked, mashed sweet potatoes
- 1 stick margarine (1/2 c.)
- 1/4 c. milk
- 1 1/4 c. sugar
- 1 egg, beaten
- 1 tsp. vanilla

Directions:
- Boil sweet potatoes in clear water until tender.
- Peel while warm.
- Put in large mixer bowl and, while warm, mash at low speed. Add butter, sugar, egg, milk and vanilla.
- Pour into unbaked pie shell and bake at 350° until well set and lightly browned, about 30 to 40 minutes.