1 1/2 cups cooked or canned mashed sweet potatoes
3 tbsp. butter
2 eggs
1/4 tsp. salt
1 cup sugar
1 tsp. lemon flavoring
1 cup milk
1/2 cup chopped black walnuts
1 - 9 inch unbaked pie shell

Mix all ingredients well. Pour into unbaked pie shell and bake in 350°F oven for 30 minutes or until firm.