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Home » Recipes » Meal Types » Desserts » Reese’s Fluffernutter Bars

June 19, 2019 · Updated January 20, 2022 · 15 Comments

Reese’s Fluffernutter Bars

Desserts· Party Recipes· Recipes

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An irresistible combination of peanut butter, chocolate, and creamy marshmallow fluff — Reese’s Fluffernutter Bars take the ooey-gooey dessert game to the next level!

An irresistible combination of peanut butter, chocolate, and creamy marshmallow fluff — Reese's Fluffernutter Bars take the ooey-gooey dessert game to the next level!

Reese’s Fluffernutter Bars

I love Reese’s peanut butter cups.

I’ve loved Reese’s peanut butter cups since I was a child.

I love anything that involves Reese’s peanut butter cups – ice cream, cookies, brownies, cupcakes, you name it!

I feel like I’m writing an ode to Reese’s peanut butter cups here…but they are seriously the best thing ever!

And these fluffernutter bars are a Reese’s PB cup fan’s dream come true.

Layers of rich peanut butter cookie dough, Reese’s peanut butter cups (obviously!) and marshmallow fluff — it might sound a little “out there” but let me tell you it works.

Trust me, if you make these Reese’s fluffernutter bars for the next party or potluck you’re invited to, you’ll be the crowd favorite! (And you’ll probably get requests to make them again next time!)

Keep reading for the easy-peasy recipe PLUS a video tutorial to make our super decadent Reese’s Fluffernutter Bars!

PS- If you’re a major PB fan, you’ve got to try our No Bake Peanut Butter Bars or our Chocolate Peanut Butter Fudge recipe too!

An irresistible combination of peanut butter, chocolate, and creamy marshmallow fluff — Reese's Fluffernutter Bars take the ooey-gooey dessert game to the next level!

Reese’s Fluffernutter Bars Ingredients

(makes 16 peanut butter fluff bars)

  • 1/2 cup butter, softened
  • 1/3 heaping cup peanut butter
  • 1 cup packed brown sugar
  • 1 egg
  • 1 teaspoon vanilla
  • 1 1/4 cups all purpose flour
  • 9-12 regular sized Reese’s Cups
  • 2/3 cup chocolate chips
  • 1 7-oz container Marshmallow Creme

Note: We’ve provided ad links for your convenience in finding supplies used to make this recipe; read our disclosure policy here.

Kitchen supplies used to make this recipe:

  • Stand mixer
  • 9×9 baking pan
  • Parchment paper
  • Wire cooling rack

An irresistible combination of peanut butter, chocolate, and creamy marshmallow fluff — Reese's Fluffernutter Bars take the ooey-gooey dessert game to the next level!

Fluffernutter Bars Recipe

First, watch our quick demo video to see how we made our fluffernutter bar recipe. Then, keep reading for photo step-by-step instructions and free printable recipe card.

Click video to play:

Preheat oven to 350°F and prepare a square baking pan with parchment paper.

To make your cookie dough:

Cream butter and sugar until fluffy. Add peanut butter, vanilla, and egg and continue mixing until incorporated.

Add flour and mix until well combined. Fold in chocolate chips by hand.

fluffernutter bars batter

TIP: We made our Fluffernutter Bars batter from scratch so we could add even more peanut butter to the mix! However you could save time by using pre-made cookie dough.

Cookie dough in baking pan

Use a spoon or spatula to even out 2/3 of the cookie dough in the bottom of your prepared baking pan, then top with a layer of Reese’s cups, marshmallow fluff, and another layer of cookie dough.

How to make decadent Reese's Peanut Butter Fluffernutter Bars

Often we use non-stick spray alone for baking; however, in this case, parchment paper allows the bars to pop right out of the pan for easier cutting.

How to make decadent Reese's Peanut Butter Fluffernutter Bars

Watch the recipe video below to see exactly how we made our Reese’s Fluffernutter Bars and be sure to sign up for our recipe share newsletter for new recipes delivered right to your inbox each week. It’s free to join!

Grab a free printable copy of our Peanut Butter Fluff Bars recipe:

If you love this recipe, rate it! Or tell us what you think in the comments below.

An irresistible combination of peanut butter, chocolate, and creamy marshmallow fluff — Reese's Fluffernutter Bars take the ooey-gooey dessert game to the next level!
Print Recipe
4.80 from 74 votes

Reese's Fluffernutter Bars

An irresistable combination of peanut butter, chocolate, and creamy marshmallow fluff — Reese's Fluffernutter Bars take the ooey-gooey dessert game to the next level!
Prep Time10 mins
Cook Time20 mins
Total Time1 hr 30 mins
Course: Dessert
Cuisine: American
Keyword: chocolate, desserts, peanut butter, Reese's
Servings: 16 bars
Calories: 262kcal
Author: Stacey aka the Soccer Mom
Cost: $10

Ingredients

  • 1/2 cup butter softened
  • 1/3 cup peanut butter
  • 1 cup packed brown sugar
  • 1 egg
  • 1 teaspoon vanilla extract
  • 1 1/4 cups all purpose flour
  • 9-12 Reese’s Cups regular size (not fun size)
  • 2/3 cup chocolate chips
  • 1 container marshmallow creme 7 ounce container

Instructions

How to make Peanut Butter Fluff Bars

  • Preheat oven to 350°F.
  • Line an 9-inch square baking pan with parchment paper, allowing the parchment paper hang over all the edges of pan, so that you can use it to pull the bars out of the pan later.

To make the peanut butter fluff dough:

  • Combine the butter and sugar in a large bowl and beat until light in color and fluffy consistency (about 3 minutes).
  • Add the egg, peanut butter and vanilla, continuing to mix.
  • Add the flour and mix until well combined.
  • Fold in chocolate chips. (You can also toss in a few chopped up Reese's cups for extra chocolate & peanut butter goodness!)

To make the fluffernutter bars:

  • Press about 2/3 of the dough into the bottom of the baking dish. Unwrap and place Reese’s peanut butter cups evenly over the dough.
  • Spread the entire container of marshmallow creme over the layer of Reese's cups.
  • Cover with the remaining dough and gently press to spread evenly.
  • Bake for 25 minutes at 350°F until the crust starts to turn golden brown. Remove from oven, keeping bars in the pan for an hour. This allows them to slowly cook a little more until they cool to room temperature.
  • Remove the fluffernutter bars from the pan by pulling on the parchment paper and place on a wire cooling wrap. Allow to cool fully, until set, before slicing.

Video

Notes

Note: Nutrition information is a rough estimate only; actual values will vary based on the exact ingredients used and amount of recipe prepared.

Nutrition

Calories: 262kcal | Carbohydrates: 32g | Protein: 4g | Fat: 13g | Saturated Fat: 6g | Cholesterol: 27mg | Sodium: 122mg | Potassium: 100mg | Fiber: 1g | Sugar: 23g | Vitamin A: 215IU | Calcium: 35mg | Iron: 0.9mg

More of our favorite peanut butter treats:

Rich peanut butter, crunchy oats, and a hint of chocolate make these Healthy Peanut Butter Bliss Bars the perfect guilt-free indulgence! A simple, wholesome dessert or snack recipe.

Healthy Peanut Butter Bliss Snack Bars

The PERFECT combination of sweet & salty -- Bacon Peanut Butter Rice Krispie Treats are an EASY crowd-pleasing NO BAKE dessert!

Peanut Butter & Bacon Rice Krispie Treats

Soft peanut butter cookies filled with luscious peanut butter cream — these Homemade Nutter Butter cookies might just be better than the "real" thing!

Homemade Nutter Butter Recipe 

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Stacey aka the Soccer Mom
Stacey aka the Soccer Mom
Stacey is the creator of The Soccer Mom Blog, a Houston Texas mom blog that focuses on positive living for women and families. She loves to share real food recipes, money-saving tips, parenting encouragement, kids activities, DIY tutorials, home hacks, fitness, and so much more! To get to know Stacey even better, click here.
Stacey aka the Soccer Mom
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Comments

  1. faridah burnett says

    February 11, 2018 at 5:34 pm

    these look amazing! i’ll be trying these out for vday (and may be ambitious and attempt to use a heart cookie cutter on them =) )

    Reply
    • Stacey aka the Soccer Mom says

      February 12, 2018 at 11:45 am

      Hope you love them! If the cookie cutter doesn’t work out (they are pretty ooey-gooey!) you could always try melting chocolate and piping hearts or a Valentine’s Day message on top of the bars.

      Reply
  2. Nancy says

    February 12, 2018 at 5:43 pm

    I plan on making these in a heart shaped cake pan for Valentines Day, but have a question about step #4 in the directions for the peanut butter fluff dough. The recipe says to “fold in some Reese’s chocolate”. Does that mean to chop up some of the regular size Reese’s & use those, or is that referring to the 2/3 cup chocolate chips? I’m thinking it means the chocolate chips, but thought I would ask to make sure. Thanks for sharing such a good looking recipe……just in time for Valentines Day, too!

    Reply
    • Stacey aka the Soccer Mom says

      February 12, 2018 at 10:30 pm

      The recipe is supposed to be to “fold in chocolate chips” – but we’ve actually tried it both ways (with chopped up Reese’s). Either way tastes amazing! Thanks for pointing that out, I’ll update to make it read more clearly.

      Reply
      • fb says

        February 13, 2018 at 8:41 am

        Hey! You may also want to update “let cool in the pan for an hours” for clarity =)

        Reply
  3. Vanessa Shockey says

    February 13, 2018 at 2:56 pm

    Hey! I’m trying these out tonight for Valentine’s Day, do they need to be refrigerated or can they set out in room temperature?

    Reply
    • Stacey aka the Soccer Mom says

      February 13, 2018 at 11:11 pm

      It’s probably ok to leave them on counter in airtight container (like cookies). However, if you want them to hold together in a firmer bar, you could also keep them overnight in the fridge, as chilling will help them set. Hope you love them!

      Reply
  4. Anita says

    August 24, 2020 at 3:33 pm

    Could you double it and make it in a 9×13 pan?

    Reply
    • Stacey aka the Soccer Mom says

      August 26, 2020 at 5:20 pm

      Sure! I would just keep an eye on it — you might need to bake a few extra minutes since there is more of it.

      Reply
  5. Nanette says

    September 20, 2020 at 8:41 pm

    My family LOVES these! I have even made them gluten-free at times, it is easy to do. Thank you for gf reese’s! I only have one suggestion. Our bars seem to need way more baking time than the amount stated. I looked at other fluffernutter bars online (none of them compare to the taste of this recipe) and they suggest baking the base cookie layer first. So, I suggest baking the lower bar for 15 minutes, poke the reeses into the bar, add the fluff and then top off with the remaining dough. Finish it off with the remaining cooking time.

    Reply
    • Stacey aka the Soccer Mom says

      October 3, 2020 at 1:10 pm

      Thank you for the tip! We’ve made this recipe in two different ovens (and I like my cookies a little soft in the middle) but if you like them a little more done, baking the bottom layer first would definitely help. And I’m so glad to hear that no other recipes compare! 😉 That pretty much made my day!

      Reply
  6. Elizabeth P. says

    February 14, 2021 at 2:02 pm

    My daughter made these for today’s desert! Oh My Word!!! Beyond delicious! This recipes needs to be written down a couple times and put in every recipe box I own!

    Reply
    • Stacey aka the Soccer Mom says

      March 1, 2021 at 2:13 pm

      Haha yay!! So glad you loved them! They are one of my all-time favorites too!

      Reply
  7. Jade says

    August 16, 2021 at 2:44 am

    These bars are amazing! So easy to make too! I thought it might be a little too peanut-buttery for me, but it wasn’t! Thank you for sharing this great recipe! I’ll be making it many more times!

    Reply

Trackbacks

  1. Fluffernutter Bars - the a.m. grind says:
    May 15, 2018 at 5:03 am

    […] soon, so wanted to indulge in one of the dessert recipes that I’ve been staring at forever: fluffernutter bars!! I also had my in-laws visiting, so it was the perfect excuse to try a fun dessert recipe. […]

    Reply

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