Scrub sweet potato clean and pierce all over with a fork. Place sweet
potato on a foil-lined sheet pan and bake in a 350?F oven for 1 hour,
turning after 30 minutes, or until tender when poked with a fork.
Cool sweet potato completely. Peel sweet potato, cut into chunks and
pass through a food mill or puree in a food processor. Add
tablespoons of water until desired consistency is reached.