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.
Peanut Butter and Co. was founded in 1998 and while their website is ilovepeanutbutter.com they should’ve made it we’repeanutbuttermagicians.com because they have the most amazing flavors of peanut butter you will ever eat. Our personal favorite is White Chocolate Wonderful, but this Pumpkin Spice Peanut Butter is their most popular flavor and it sells out every year. So get your orders in early and go to your local grocery stores now!
I talk a lot on the blog about ingredients, good swaps and when you want to use specific products so it seems only fair we would discuss what makes Peanut Butter and Co. so special. From their site:
Peanut Butter & Co.’s line of Non-GMO Project Verified peanut butter contains no hydrogenated oils, no cholesterol, no trans-fats and, no high fructose corn syrup. Our flavors are gluten-free, vegan (except for The Bee’s Knees which is vegetarian), and certified kosher. Lastly, but just as importantly, we only use USA-grown peanuts in our peanut butter.
Also, the Pumpkin Spice Peanut Butter has actual pumpkin in it.
So of course all that delicious natural goodness needs to get mixed with homemade marshmallow fluff and baked into delicious Pumpkin Fluffernutter Bars.
I use a recipe for homemade marshmallow fluff in this recipe but you can swap for premade and these bars can be made in no time at all. Plus with the pumpkin spice flavor built into the peanut butter you’ll LOVE how easy these bars are.
Looking for more bar recipes?
- Homemade Twix Bars
- Marshmallow Crunch Brownie Bars
- Creamy Lemon Crumb Bars
- Starbucks Cranberry Bliss Bars (Copycat)
Awesome alternate uses for this Pumpkin Spice Peanut Butter?
- Use is as a sandwich cookie filling between two sugar cookies.
- Swirl it into your favorite cheesecake recipe and bake for the easiest flavored cheesecake ever.
- Add it to the filling of a chocolate peanut butter lava cake for the easiest and fanciest upgrade.
- Make the best pb&j with it paired with blueberry jam. Pumpkin and blueberries go together great!
- 1/4 cup + 2 tablespoons water
- 3/4 cup granulated sugar
- 3/4 cup light corn syrup
- 3 large egg whites
- 1/2 teaspoon cream of tartar
- Pinch salt
- 2 teaspoons pure vanilla extract
PEANUT BUTTER BARS
- ½ cup unsalted butter
- 1 cup light brown sugar packed
- 1 large egg
- 1 teaspoon vanilla extract
- 1 cup Pumpkin Spice Peanut Butter
- 1/2 teaspoon salt
- 1 1/4 cup flour
TO MAKE THE MARSHMALLOW FLUFF:
- In a saucepan add the water, sugar and corn syrup and over medium high heat cook until it reaches 240 degrees (about 10-12 minutes).
- In a stand mixer add the egg whites until they start to foam, then add in the cream of tartar and salt and beat to soft peaks (the very top of the peak falls).
- When the egg whites are ready and the sugar reaches 240 degrees turn off the heat and wait 30 seconds.
- Add the sugar to the stand mixer while it is running on high speed in a very thin stream.
- Beat on high heat for 5-6 minutes until the bowl is no longer warm at all.
- Refrigerate until you’re ready to make the bars.
TO MAKE THE PUMPKIN FLUFFERNUTTER BARS:
- Preheat the oven to 350 degrees and spray an 8×8 baking pan with baking spray.
- In a stand mixer dd the butter, brown sugar, egg and vanilla.
- Beat on high until fluffy.
- Add in the peanut butter and beat until combined.
- Add in the salt and flour and beat until just combined.
- Spread half the batter into the bottom of the pan.
- Bake for 15 minutes.
- Let cool for five minutes in the fridge.
- Scoop the marshmallow fluff randomly across the pan in large dollops.
- Spread small clusters of the remaining batter in between the dollops of marshmallow fluff.
- Bake an additional 15-18 minutes.
- Cool completely before cutting into 16 squares.
Do you have a substitute for the pumpkin pb? I want to make these with sunflower butter. Thank you!
I would add a tsp or two of Pumpkin Pie Spice (depending on your taste) and a Tbsp of Pumpkin puree to your sunflower butter.
Here’s a link to make your own Pumpkin Pie Spice: https://dinnerthendessert.com/pumpkin-pie-spice/
just so you know we in new england have a product called marshmallow fluff it comes in a jar or plastic container. and we have a sandwich called fluffernutter. fluff and peanutbutter on white bread.
One cup of pumpkin spice? That seems like a lot.
Hi Becky, it isn’t one cup pumpkin spice, it is 1 cup Pumpkin Spice peanut butter. 🙂
I love Peanut Butter and Co products. But I’ve still never tried Pumpkin Spice Peanut Butter! This is will be on my next to do list for this autumn!
Smart lady!! It’s so good!!
Swooning over these gooey bars! I could eat a whole pan of them!
Thank you Anna! Your secret is safe with me if you do eat the whole pan 🙂
Oohhh… these look so decadent and delicious! Love your combination of flavors!
My son love their Bees Knees peanut butter with honey :-).
Fantastic! Such a great snack!
These look so ooey gooey. I love to make fluffernutter bars but never thought of using pumpkin peanut butter. Great idea!
These look positively luscious and I’ve got to try that peanut butter!
Thank you so much Kimberly! You’re going to love it!
where would you find pumpkin peanut butter?
If you click on the link in the post, their website pops up and they have a store locater. Just type in your zip code and it’ll show you retailers around you that carry their product….easy peasy!
The store locator didn’t pop up with a zip code option, just 2 websites that were $16+ for 1 jar. Amazon shows the product at a good price but unavailable. PB&Co site has a good price and it’s available, but shipping for 2 jars is more expensive than the 2 jars! Any other options for this recipe? I have 2 church groups that would love this dessert. Thanks!
It’s a pumpkin spice peanut butter. PB&Co is the best tasting that I’ve had, but I’m sure there might another brand that would be good.