LINE 13 x 9-inch baking pan with foil.
COMBINE sugar, brown sugar, evaporated milk, pumpkin, butter and spice in medium, heavy-duty saucepan. Bring to a full rolling boil over medium heat, stirring constantly. Boil, stirring constantly, for 10 to 12 minutes or until candy thermometer reaches 234° to 240º F (soft-ball stage).
QUICKLY STIR in morsels, marshmallow crème, nuts and vanilla extract. Stir vigoriously for 1 minute or until morsels are melted. Immediately pour into prepared pan. Let stand on wire rack for 2 hours or until completely cooled. Refrigerate tightly covered. To cut, lift from pan; remove foil. Cut into 1-inch pieces. Makes about 3 pounds.
FOR BUTTERSCOTCH FUDGE:
SUBSTITUTE 1 2/3 cups (11-oz. pkg.) NESTLE® TOLL HOUSE® Butterscotch Flavored Morsels for Premier White Morsels.