4 cups flour
2 Tablespoons baking powder
2 teaspoons salt
1 cup sugar

1 cup shortening (or butter)
2 cups mashed sweet potatoes

Mix flour, baking powder, salt, and sugar.
Cut in shortening until it reminds you of corn meal.

Mix in sweet potatoes with your hands.
Roll & cut like regular biscuits.

Bake at 450 degrees for 12-15 minutes or until golden.         
                                                                                                                Source: Diana Lasky