SWEET POTATO & MARSHMALLOW SWIRL CHEESECAKE

Steps:

• Preheat oven to 350°. Place sweet potatoes on a greased baking sheet, cut side down. Bake until tender, 25-30 minutes. Cool slightly. Remove peel; place potatoes in a food processor. Cover and process until smooth. (There should be about 2 cups.), Place a greased 9-in. springform pan on a double thickness of heavy-duty foil (about 18 in. square). Wrap foil securely around pan. Place on a baking sheet., In a small bowl, mix cookie crumbs, macadamia nuts and butter. Press onto bottom of prepared pan. Bake 15 minutes. Cool on a wire rack. Reduce oven setting to 325°., In a large bowl, beat cream cheese and sugars until smooth. Beat in sour cream, whipping cream, butter, vanilla, pie spice and sweet potato puree. Add eggs; beat on low speed just until blended., In a small bowl, beat marshmallow creme, cream cheese, egg, flour and vanilla until smooth. Pour half the sweet potato mixture over crust. Pour half the marshmallow mixture over sweet potato mixture; swirl gently with a knife. Repeat., Place springform pan in a large baking pan; add 1-in. hot water to larger pan. Bake until center is just set and top appears dull, 1-1/4 hours. Remove springform pan from water bath. Cool cheesecake on a wire rack 10 minutes. Loosen sides of pan with a knife; remove foil. Cool 1 hour longer. Refrigerate overnight, covering when completely cooled.