Put chips, marshmallow creme, and flavoring in a bowl; set aside.
Mix sugar, butter, and whipping cream. Boil 4 minutes. Pour over vanilla chips mixture; mix well. Remove 1 cup and set aside;
Add food coloring to remaining fudge; stir. Pour orange fudge into buttered pan; spoon reserved white fudge on top and swirl with a knife. Refrigerate; cut into squares.