Instructions

1. In a large mixing bowl dissolve the yeast in the warm water, add the milk, 1/4 c sugar, shortening, salt, egg and half of the flour to the yeast mixture.
2. Mix with a wooden spoon until combined, then add the rest of the flour and mashed sweet potatoes and stir until smooth.
3. Turn the dough out onto a floured surface and knead for 5 minutes until the dough is smooth and elastic. Place the dough in a greased bowl and cover with a cloth, let rise 1-2 hours.
4. Punch down the dough and let rise an additional 30-45 minutes.
5. Preheat your oven to 350º and prepare 2 cake pans with cooking spray, set aside.
6. Roll the dough out into a large rectangle and spread the butter over the surface, sprinkle on the cinnamon and brown sugar.
7. Roll the dough tightly from the long side of the rectangle, pinch the dough to seal the seam.
8. Slice the roll into equal pieces and place into greased cake pans, bake for 20-25 minutes until golden brown.
9. Remove carefully and cool in the pan 5-10 minutes. In a small bowl combine the icing ingredients and stir until smooth, drizzle the icing over the rolls and serve warm.