Pumpkin Fluffernutter Bars

"Pumpkin Fluffernutter Bars are the perfect mix of peanut butter brownie, marshmallow filling and all things pumpkin and fall flavored. Best back to school snack ever. Pumpkin Fluffernutter Bars are the perfect bar for the rapidly arriving fall season and the beginning of ALL THINGS PUMPKIN on the blog. These bars are gooey, pumpkiny (hey, on this blog that’s a word autcorrect) and perfectly peanut buttery. Plus they’re made with Pumpkin Spice Peanut Butter from Peanut Butter and Co. who so generously sponsored this post."