Sweet Potato Pie
["4 c. mashed, cooked sweet potatoes", "2 c. firmly packed brown sugar", "1 stick margarine, softened", "4 eggs, separated", "1 tsp. ground ginger", "1 tsp. ground cinnamon", "1 tsp. ground nutmeg", "1/4 tsp. salt", "1 can evaporated milk", "1 can sweetened condensed milk", "2 c. coconut", "2 tsp. lemon flavoring", "1/4 c. white sugar", "4 uncooked pie shells"]
["Beat egg yolks. Add sweet potatoes, brown sugar, margarine, spices, salt and sweetened condensed milk in a large mixing bowl; beat until fluffy.", "Add evaporated milk and lemon flavoring; beat just until blended. Stir in coconut. Beat egg whites with electric mixer until foamy; gradually add white sugar, one tablespoon at a time, beating until stiff peaks form."]
["potatoes", "brown sugar", "margarine", "eggs", "ground ginger", "ground cinnamon", "ground nutmeg", "salt", "milk", "condensed milk", "coconut", "lemon flavoring", "white sugar", "pie shells"]