2 c. self-rising flour
1/3 c. shortening
1 tbsp. sugar
1 c. cooked sweet potatoes, mashed
3/4 c. buttermilk

Sift flour. Cut or mix in shortening. Add sugar and sweet potatoes. Stir in milk. Use a little more flour if necessary to make a stiff dough. Toss dough on floured board or cloth and knead lightly. Roll out to 1/2-inch thickness. Cut with flour cutter or roll out with hands. Bake at 450 degrees until golden brown. Butter biscuits while warm and serve.