Sweet Potato Cookies - cooking recipe

Ingredients

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. ???

Preparation

Mix all ingredients except flour.
Add flour.
Work in gradually. Drop by teaspoon on cookie sheet.
Cook at 350\u00b0 until done.