Harvest Sweet Potato Biscuits
["1 egg, slightly beaten", "1 c. mashed, cooked sweet potatoes", "1/4 to 1/2 c. sugar", "2 Tbsp. margarine, softened", "2 c. self-rising flour", "3 Tbsp. shortening"]
["Combine egg, sweet potatoes, sugar, shortening and margarine in a bowl; mix well.", "Stir in enough flour to make a soft dough. Knead lightly several times on floured surface.", "Roll to 1/4-inch thickness; cut with 2-inch biscuit cutter.", "Place on greased baking sheet.", "Bake at 350\u00b0 for 15 minutes.", "Makes 17 biscuits."]
["egg", "potatoes", "sugar", "margarine", "flour", "shortening"]