I peeled them and baked the peels in the oven until crispy, to use as dog treats. The dogs really, really love them.
I diced and boiled a them, then pureed them. I'm hoping to make some sweet potato pie this weekend.
One sweet potato I cooked in the microwave (~1 cup when mashed), to make chocolate chip sweet potato muffins.
Chocolate chip sweet potato muffins
* 2 eggs
* 1½ cups whole wheat flour
* 2 tsp baking powder
* 1 tsp baking soda
* ¾ cup light brown sugar
* 1 cup sweet potato, mashed
* 1 cup chocolate chips
Preheat oven to 350 F. Mix ingredients well. Spoon into muffin cups. Bake ~20 min, check at 15, done when a toothpick inserted in the center comes out clean.