Roasted pumpkin purée makes all the difference. Preheat oven to 325°. Wash sugar pumpkin clean. Cut three 1-inch slits in the pumpkin to allow it to breath. Add pumpkin and an inch of water to a shallow pan. Bake for about an hour or until pumpkin is soft. Cool completely. Peel and discard seeds. Mash pumpkin meat and store covered in the refrigerator, or measure out 1-cup bags and store in freezer.