Peel the sweet potatoes then cut them into chunks. Boil until tender. Drain and set aside.
Melt some margarine (a few tablespoons) in the pot, add 1 cut up banana and let the banana soak it up.
Then add some orange or apple juice.
Let everything soak together on lowish med heat. Then add the sweet potatoes back. Add some chicken stock and mash everything together. Add some brown sugar to taste and cinnamon/nutmeg if you can.