Mix the water and yeast together; set aside.
In a medium size mixing bowl, stir together oil, sugar, salt and sweet potatoes (if using). Stir in the yeast and water mixture. Add flour and stir to incorporate, but do not over stir. Cover the dough and let rise for 30 minutes.
Punch down dough and roll into a circle about 12” in diameter on a floured surface. Cut dough into 10-12 pizza shaped wedges. Roll each triangle from the outer edge to the center. Slightly bend the ends of the roll towards the center to make a crescent shape. Place the roll on a greased baking sheet with the center tips down.
Cover and let rise for 15 minutes while heating the oven to 375°F. Bake for 10 minutes. Serve hot.
