Sweet Potato Biscuits

1 cup all-purpose flour
1/2 teaspoon salt
3 teaspoons baking powder
4 tablespoons solid shortening
1 cup cooked sweet potatoes, mashed
1/2 cup milk

Heat oven to 400 degrees F.

Sift dry ingredients together. Cut in shortening. Add mashed potatoes. Add enough milk to make firm dough but not too stiff. Roll out on floured cutting board, then cut with biscuit cutter. Place in a greased biscuit pan and bake for 25 to 30 minutes until browned.