Sweet Potato Pie
["3 c. cooked mashed sweet potatoes (6 large sweet potatoes)", "2 sticks butter (1/2 lb.)", "3 c. sugar", "2 tsp. cinnamon", "2 tsp. nutmeg", "1/4 tsp. allspice", "1 tsp. salt", "2 tsp. vanilla", "2 eggs, well beaten", "3 Tbsp. light cream", "2 pie crust shells (9-inch)"]
["Preheat oven to 350\u00b0.", "Mash your sweet potatoes thoroughly; allow to cool slightly.", "Add butter; whip until it is all creamed into the potatoes.", "Add sugar and spices, beating thoroughly.", "Add eggs; beat.", "Add cream and blend.", "Pour into pie crust shells and bake at 350\u00b0 for approximately 50 minutes, until filling is firm."]
["potatoes", "butter", "sugar", "cinnamon", "nutmeg", "allspice", "salt", "vanilla", "eggs", "light cream", "shells"]