Sweet Potato Cookies
["2 medium sweet potatoes, boiled or baked", "2 c. sugar", "1/2 c. dark Karo syrup", "1 small can milk or 2/3 c.", "1 c. shortening", "4 Tbsp. cinnamon", "2 c. self-rising flour", "3 Tbsp. ???"]
["Mix all ingredients except flour.", "Add flour.", "Work in gradually. Drop by teaspoon on cookie sheet.", "Cook at 350\u00b0 until done."]
["sweet potatoes", "sugar", "syrup", "milk", "shortening", "cinnamon", "flour"]