Sweet Potato Biscuits
["1 egg, slightly beaten", "3/4 c. sweet potato, cooked and mashed", "1/3 c. sugar", "5 Tbsp. shortening", "about 2 c. self-rising flour"]
["Mix egg, sweet potato, sugar and shortening in a bowl; beat until smooth.", "Stir in enough flour to make a dough stiff enough to turn onto a floured surface.", "Knead a few times; then roll out 1/2-inch thick.", "Cut with a biscuit cutter or jar lid and bake on an ungreased baking sheet at 350\u00b0 for about 15 minutes."]
["egg", "sweet potato", "sugar", "shortening", "flour"]