Fluffer what?! Fluffernutter! Peanut butter cookie bars, full of mini marshmallows, mallow bits, chopped peanut butter cups and semi sweet chocolate chips. Soft, gooey cookie bars…and did I mention these are made with peanut butter, marshmallows and chocolate?! People flip out over these every time I make them, but I realized I didn’t have the recipe on the blog yet. So I fixed that 🙂
This recipe makes a lot, is easy to make and they stay soft for days! Perfect for bake sales, parties, late night snacking…or just because! And like I said before….people LOVE these. So much in fact, instead of a wedding cake, one of my friends asked me to make these Fluffernutter bars as the dessert for their wedding.
Fluffernutter Bars
Print RecipeIngredients
- 1 cup unsalted butter, room temperature
- 3/4 cup creamy peanut butter
- 1 cup light brown sugar
- 1/2 cup white granulated sugar
- 1 teaspoon vanilla extract
- 2 eggs, room temperature
- pinch of salt
- 2-1/4 cups all-purpose flour
- 1 teaspoon baking soda
- 1-1/2 cups mini marshmallows
- 1/2 cup mallow bits (can use mini marshmallows instead)
- 1/2 cup semi-sweet chocolate chips
- 2 cups chopped peanut butter cup pieces
- TOPPING:
- 1 tablespoon raw sugar
Instructions
Preheat oven to 350-degrees. Line a 9x13-inch pan with foil and spray the bottom and sides of the pan with baking spray. Set aside.
In the bowl of a stand mixer, affixed with the paddle attachment, add the butter and beat on medium-high speed until pale and glossy. Add the peanut butter to the butter and mix until combined. Scrape down the sides of the bowl as needed. Add the brown sugar and white sugar to the butter mixture and mix on medium-high speed until light and fluffy. Add the eggs to the mixture, one at a time, mixing the first egg into the mixture fully, before adding the second egg. Mix in the vanilla extract.
Change the mixer speed to low and slowly add the salt, flour and baking soda to the bowl. Mix until just combined. With the mixer on the lowest setting, add the marshmallows, mallow bits, chopped peanut butter cup pieces and chocolate chips. Mix until just combined.
Remove the bowl from the mixer and pour the cookie dough batter into the prepared pan. Press dough so it is evenly distributed in the pan. Sprinkle the raw sugar evenly over the top of the dough.
Bake bars in 350-degree oven for 20-minutes. Bars may look underdone, but they will continue baking in the pan once removed from the oven.
Let bars cool in the pan completely, before removing bars from the pan and cutting into desired sized squares.
Notes
Store in an airtight container at room temperature. Bars will stay fresh for 7-10 days.
Isn’t this container the cutest?! My sister bought it for me for Christmas last year 🙂 I made a batch of these bars to take into work…so of course I had to put them in my super cute container!
This recipe would be perfect for cookie exchanges or holiday parties. It can be made a few days in advance too, because these Fluffernutter Bars stay soft for days! Definitely pin this recipe and share on Facebook…and then run to the kitchen to make these. You won’t be sorry!
XOXO,
Kelly
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39 Comments
Milena | Craft Beering
November 28, 2017 at 8:49 AMI can’t say that I’d hear of a ‘fluffernut’ before, but seeing these bars I am sooo sold! They would go perfect with some coffee or hot cocoa after a day of skiing. The dreams I have for snow this time of year:) Pinned!
Kelly
November 29, 2017 at 6:00 AMThanks Milena! It’s “fluffer” for the marshmallows and “nutter” for the peanut butter. It’s just a fun word hahaha. But these are sooooo good! You definitely need to make these on a snowy day 🙂
Kim | The Baking ChocolaTess
November 28, 2017 at 9:19 AMI could eat these everyday! All of my favorite things in the world!! They look so decadent!!
Kelly
November 29, 2017 at 6:02 AMThanks Kim! I could too hehehe. I could eat these until I get sick. Probably why I try to give them all away as soon as I make them 🙂 XOXO
Sandra Garth
November 28, 2017 at 11:09 AMI am going to enjoy every single calorie without guilt. There’s nothing better than a soft and gooey bar filled with my favorite things!
Kelly
November 29, 2017 at 6:03 AMThanks Sandra!! These are definitely to be enjoyed! Calories don’t count during the holidays right? Or maybe that’s why we have stretchy pants hehehe 🙂 XOXO
Katherine | Love In My Oven
November 28, 2017 at 9:16 PMThat container is just adorable Kelly!! Your nieces are so cute. These look SO good!!!
Kelly
November 29, 2017 at 6:03 AMThanks Katherine! I love my container and my nieces 🙂 And these bars are YUMMY! 🙂 XOXO
Sandy
November 29, 2017 at 12:03 AMIs there a substitute that can be used for the raw sugar in this recipe?
Kelly
November 29, 2017 at 6:07 AMHi Sandy! Thanks for checking this recipe out 🙂 You can substitute the raw sugar for sparkling sugar or sanding sugar (the sugar crystal sprinkles). I was just trying to mimic the how peanut butter cookies are rolled in sugar and wanted a little crunch on top. If nothing else, you could just use good ol’ granulated sugar! 🙂
Amy (Savory Moments)
November 29, 2017 at 7:36 AMOh man!! These looks amazingly yummy and decadent!! I love that your friend requested them for her wedding!
Kelly
December 1, 2017 at 7:40 AMThank you Amy! And they were a HIT at the wedding! Everyone loved them. Plus it was so much easier for me to make than a huge ol’ wedding cake hehehe 😉
Shannon @loveatfirstbento
November 29, 2017 at 7:48 AMOMG, I need these in my life ASAP! These bars are literally filled with all of my guilty pleasures, so making these is not an option for me, but a necessity! Bookmarking to bake with my sister the next time she visits, as I know she’ll love them too 🙂
Kelly
December 1, 2017 at 7:42 AMAwww! Thank you! I hope you and your sister make these! Let me know what you think 🙂 XOXO
Kelsie | the itsy-bitsy kitchen
November 29, 2017 at 8:54 AMWhoa! I need to make these ASAP. My family would go nuts for them!
Kelly
December 1, 2017 at 7:42 AMThanks Kelsie! So easy to make! I know your family would LOVE them 🙂
heather (delicious not gorgeous)
November 29, 2017 at 2:40 PMthese sound so tasty!!! the first time i had a fluffernutter sandwich as a kid, i was mindblown that my friend was even allowed to eat such a sandwich (my parents only exposed me to sandwiches with plenty of veggies lol).
Kelly
December 1, 2017 at 7:43 AMHAHAHA! I love it! Now you got me wanting to make a fluffernutter sandwich! I might need to run to the kitchen…hehehe 🙂
Amy
November 30, 2017 at 7:56 AMThese fluffernutter bars sound and look fantastic! I love the container too – that is so cute. These bars sound like a great wedding treat to me. Thank you for sharing this recipe. This one is definitely one that I am going to have to try.
Kelly
December 1, 2017 at 7:44 AMThanks Amy! I hope you try this! Let me know what you think, if you do! These are soooooo yummy 🙂
Maria Doss
November 30, 2017 at 8:40 PMThat container is so darn cute Kelly, totally love it. These bars have all my favorite things in one bite and it looks so soft too, yum!
Kelly
December 1, 2017 at 7:45 AMThanks Maria! My sister finds the cutest, original presents for me. I definitely treasure that container 🙂 And the treats are yummy too hehehe
Colleen
December 5, 2017 at 3:59 AMSo super yummy looking and I agree, the tin is adorable!
Kelly
December 6, 2017 at 5:50 AMThank you Colleen! These are definitely a favorite of mine and a go-to recipe 🙂 And my tin just makes me smile 🙂 XOXO
Janice Thomas
December 5, 2017 at 7:01 AMI can’t wait to try these! Adding them to our must try list! Celebrate 365 #cookieexchange is glad you joined in!
H.A.G.
December 8, 2017 at 5:27 AMI make my daughter a fluffer-nutter sandwich every day for school- she would absolutely LOVE these! Great idea!
Kelly
December 9, 2017 at 6:50 AMLucky daughter! She must be the envy of every kid who is pulling out a boring ham sandwich for lunch! Your daughter would definitely love these bars 🙂 XOXO
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P~
February 28, 2018 at 5:52 AMThese look incredible, Kelly! I can’t wait to try them! P~
Kelly
February 28, 2018 at 7:28 AMThank you P~!!! XOXO
Wendy
February 28, 2018 at 5:55 AMMmmmmm…..fluffernutter…….
Kelly
February 28, 2018 at 7:29 AMHehehe right?! 🙂 XOXO
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Laura Dembowski (@piesandplots)
February 28, 2018 at 10:04 AMSeriously, Kelly???? You make the most mouth watering genius desserts!
Kelly
March 1, 2018 at 7:18 AMAwwww thank you Laura!! These are totally a favorite of the guys at the firehouse 🙂 XOXO
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