Preheat oven to 400°.
. Wrap each sweet potato in foil, and place on a baking sheet. Bake at 400° for 1 hour and 10 minutes or until very tender.
. Combine cranberries and water in a medium saucepan. Bring to a boil; reduce heat, and simmer, uncovered, 4 minutes or until most cranberries pop. Remove from heat; add marmalade, and stir until marmalade melts. Stir in cinnamon and next 3 ingredients.
. Scoop out pulp from potatoes; place pulp in a large mixing bowl. Discard potato skins. Mash pulp with a potato masher until smooth. Stir in cranberry mixture, and spoon into a 2-quart baking dish coated with cooking spray. Cover and bake at 400° for 15 minutes or until thoroughly heated.