These Pumpkin Caramel Marshmallow Fluff Bars are gooey, sweet, and irresistible! These easy bars are sure to be devoured quickly. I'm usually done with pumpkin after Thanksgiving, so I thought I'd sneak in one last pumpkin recipe in before my self-inflicted posting-about-pumpkin deadline. It's a good one. Pumpkin meets both caramel AND marshmallow fluff in these ooey