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 degree 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. This recipe yields about 1 1/2 cups
pureed sweet potato.