Sweet Potato Balls
["4 medium sweet potatoes or 1 can sweet potatoes", "1 egg", "1 Tbsp. butter", "marshmallows", "1/4 c. sugar", "1/3 c. flour"]
["Boil potatoes until done; drain well.", "Cream the egg, butter, sugar and flour.", "Mix with potatoes.", "Place in refrigerator until chilled.", "Spoon into small balls, using a medium marshmallow in center.", "Fry or bake at 350\u00b0."]
["sweet potatoes", "egg", "butter", "marshmallows", "sugar", "flour"]