Recipe
2 1/4 c. all purpose flour
3 1/2 T. Baking powder
1 t. Salt
2 t. sugar
6 T. cold butter
3/4 c. buttermilk
3/4 c.completely mashed baked  sweet potato
1 tsp cinnamon
add together all dry ingredients
cut in cold butter until completely incorporated
add milk and sweet potatoes and mix
pour out on floured  board and fold over together 4 times to insure nice flakiness
cut out and place on greased pan
brush with 1 beaten egg yolk and 1 t. water
bake at 350 25-30  minutes
brush with melted butter
ENJOY
make 12-20 biscuits