My Mother's Sweet Potato Pie Recipe

• 1 1/2 c. Cooked sweet potatoes (mashed)
• 1 1/2 c. Sugar
• 2 1/2 Tbsp. Softened butter or possibly margarine
• 2/3 c. Evaporated lowfat milk
• 3 x Egg yolks (beaten)
• 1 tsp Vanilla extract
• 1 tsp Grnd nutmeg
• 3 x Egg whites
• 1 x 9" deep dish pastry shell (uncooked)

Directions