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You are here: Home / Recipes / Dessert / Reese’s Marshmallow Brownies

Reese’s Marshmallow Brownies

June 16, 2024

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Three image collage for reeses marshmallow brownies recipe. Shows the brownies stacked and one image shows a bite taken from the brownie. Center color block with text overlay.

These decadent Reese’s Marshmallow Brownies have four delicious layers: a fudgy, brownie base, a layer of ooey gooey marshmallow, sweet peanut butter cups and the most amazing peanut butter-chocolate crispy rice topping! Perfect for any occasion, these brownies offer layers of amazing flavors and textures that will leave you craving more!

Still craving more Reese’s desserts? You won’t want to miss my Reese’s Peanut Butter Fluff, Reese’s No Bake Peanut Butter Cheesecake and these Reese’s Peanut Butter Cup Mini Cheesecakes!

Three brownies stacked on each other so you can clearly see the brownie layer, followed by a marshmallow creme layer, Reese's peanut butter cups and then the top layer which is a chocolate peanut butter rice krispie layer.

Reese’s Marshmallow Brownies Recipe

This Reese’s marshmallow brownie recipe takes the classic chocolate brownie to a whole new level. It has layers of rich chocolate brownies, gooey marshmallow fluff, and everyone’s favorite peanut butter candy: Reese’s. The brownies are topped off with an addicting peanut butter-chocolate crispy rice layer that adds a ton of flavor and texture to these divine brownies.

These yummy Reese’s Brownies couldn’t be easier to make! To really cut back on time, I used a box of brownie mix. If you prefer, you can use your favorite homemade brownie recipe in place of the mix. The rest of the process is so easy, as you top the brownies with each of the remaining layers where only the top layer requires any real effort.

It’s the ultimate treat that peanut butter-chocolate fans are going to go crazy for! I don’t know about you, but a recipe with this much chocolate and peanut butter pretty much REQUIRES a cold glass of milk – so don’t forget that!

Why You’ll Love This Recipe

If you’re here, I’m going to guess it’s because you’re a fan of either brownies or Reese’s and this recipe delivers on both fronts plus a whole lot more. I know you’re going to love these Reese’s krispie brownie bars as much as we do!

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5 SECRETS TO GETTING DINNER ON THE TABLE...FAST!

  • The Ultimate Combo of Flavors: This recipe combines three stand-out flavors – rich chocolate, creamy peanut butter and gooey marshmallow. Each bite is an explosion of texture and taste, satisfying any sweet tooth!
  • Super Easy: Don’t be fooled by the decadent and impressive layered outcome; these brownies are surprisingly simple to make.
  • Guaranteed Crowd-Pleaser: These Reese’s Marshmallow Brownies are guaranteed to disappear in a flash! They’re perfect for potlucks, bake sales, or simply treating your loved ones (or yourself!) to a tasty homemade dessert.
Two brownies with multiple layers including marshmallow, Reese's candy, and a crunch peanut butter chocolate layer stacked on each other. The top brownie has a bite taken out of it.

How to Make Reese’s Marshmallow Brownies

There are four different layers for this brownie recipe: brownie, marshmallow, Reese’s, and peanut butter-chocolate crispy rice. We’ll teach you how to layer each one below! As always, find the full printable recipe card at the end of this post.

  1. Prepare brownies according to package directions (or make your own!) for a 9×13 baking dish. Cool completely and refrigerate for at least one hour.
  2. Spread marshmallow fluff on top of chilled brownies and return to the refrigerator for at least 30 minutes.
  3. Top with halved Reese’s miniatures.
  4. Melt peanut butter and chocolate chips together in a microwave safe-container. Heat on high heat in 30 second intervals, stirring in between.
  5. Stir in crispy rice cereal until completely coated. Spread mixture carefully over the top of the Reese’s.
  6. Return to refrigerator for another hour before cutting into bars.

For a chewier topping, use a higher ratio of peanut butter to chocolate. If you prefer a crispier texture, use less peanut butter and more chocolate.

Storage Information

  • Refrigerator: Store leftover brownies in an airtight container in the fridge for up to 3-4 days. Sit out at room temperature for 10 minutes or so before enjoying.
  • Freezer: Brownies can be frozen for up to 3 months as a whole pan or in individual slices. Whichever method you choose, wrap the brownies in plastic wrap, then aluminum foil, and placed in a freezer-safe container.
  • Thawing: Thaw brownies on the counter before enjoying.
A stack of two Reese's Marshmallow Brownies which reese's peanut butter cups scattered around.

What can I use besides Reese’s Peanut Butter Cups?

This recipe is super customizable in that you can add almost anything on top of that marshmallow fluff layer. Snickers, PayDays, 100 Grand Bars, Twix and 3 Musketeers would all be delicious. You can also just leave that layer out should you prefer.

Variations To Try

This Reese’s Brownie recipe is delicious on it’s own but here are some delicious twists on this recipe:

  • Consider swirling peanut butter in with the marshmallow creme layer.
  • Add some chocolate chips or peanuts to the brownie layer.
  • Try a different candy bar instead of Reese’s that goes well with the chocolate and peanut butter flavors.
  • Double down on Reese’s and add a sprinkling of Reese’s Pieces to the top of the chocolate-peanut butter rice krispies layer before it sets up.

Trish’s Tips

  • Letting the brownies cool completely before adding the marshmallow layer is essential, this ensures the marshmallow cream won’t melt everywhere.
  • Sprinkle a touch of flaky sea salt over the top of the crispy rice topping before it sets. The salty contrast will enhance the flavor and sweetness of the other ingredients.
  • Check out this cherry version for a yummy twist on this recipe!
  • Opt for a non-natural peanut butter (classic creamy peanut butter – Skippy or Jif) for this recipe. The natural peanut butters tend to be too oily and will cause issues with the texture.
An angled top down view of three brownies stacked on each other with their multiple layers very visible showcasing the marshmallow layer as well as the peanut butter cups.

More Brownie Recipes

  1. Cheesecake Brownies
  2. Mint Brownies
  3. Peanut Butter Brownies
  4. Triple Chocolate Cherry Brownies
  5. Brownie Batter Dip
Three brownies stacked on each other so you can clearly see the brownie layer, followed by a marshmallow creme layer, Reese's peanut butter cups and then the top layer which is a chocolate peanut butter rice krispie layer.
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5 from 1 vote

Reese’s Marshmallow Brownies

These Reese's Marshmallow Brownies combine the classic richness of chocolate brownies with the ooey gooey delight of marshmallows and the iconic taste of Reese's Peanut Butter Cups. Perfect for any occasion, these brownies offer layers of fun flavors and textures that will leave you craving more!
Course Dessert
Cuisine American
Keyword reese’s brownies, Reese’s marshmallow brownie bars, reese’s marshmallow brownies
Prep Time 15 minutes minutes
Cook Time 30 minutes minutes
Total Time 45 minutes minutes
Servings 36 bars
Calories 243kcal
Author Trish – Mom On Timeout

Ingredients

  • 18 ounces brownie mix plus ingredients needed to make brownies
  • 7 ounces marshmallow creme or fluff
  • 25 Reese's miniatures halved
  • 12 ounces semi-sweet chocolate chips
  • 1 cup creamy peanut butter don't use natural
  • 3 cups crispy rice cereal

Instructions

  • Prepare brownies according to package directions for 9×13 baking dish. Cool completely and refrigerate for at least one hour.
    18 ounces brownie mix
  • Spread marshmallow fluff on top of chilled brownies and return to the refrigerator for at least 30 minutes.
    7 ounces marshmallow creme
  • Top with halved Reese's miniatures.
    25 Reese's miniatures
  • Melt chocolate chips and peanut butter together in a microwave safe-container. Heat on high heat in 30 second intervals, stirring in between. Stir in crispy rice cereal until completely coated. Spread mixture carefully over the top of the Reese's.
    12 ounces semi-sweet chocolate chips, 1 cup creamy peanut butter, 3 cups crispy rice cereal
  • Return to refrigerator for another hour before cutting into bars.

Notes

Storage Information
Refrigerator: Store leftover brownies in an airtight container in the fridge for up to 3-4 days. Sit out at room temperature for 10 minutes or so before enjoying.
Freezer: Brownies can be frozen for up to 3 months as a whole pan or in individual slices. Whichever method you choose, wrap the brownies in plastic wrap, then aluminum foil, and placed in a freezer-safe container.
Thawing: Thaw brownies at room temperature before enjoying.

Nutrition

Calories: 243kcal | Carbohydrates: 30g | Protein: 4g | Fat: 13g | Saturated Fat: 4g | Cholesterol: 1mg | Sodium: 117mg | Potassium: 142mg | Fiber: 2g | Sugar: 20g | Vitamin A: 11IU | Vitamin C: 1mg | Calcium: 18mg | Iron: 1mg

Originally published April 19, 2016.

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By Trish - Mom On Timeout June 16, 2024 Baked, Bars, Brownies, Chocolate, Chocolate, Dessert, Ingredient, Layered Desserts, Peanut Butter, Recipes

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Comments

  1. rosie says

    July 29, 2016 at 6:00 AM

    i love these, never would have thought about marshmallow spread!

    Reply
    • Trish - Mom On Timeout says

      August 3, 2016 at 8:23 AM

      Such a convenient, yummy layer, right? Thanks For visiting!

      Reply
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Hi, I’m Trish!

Welcome to Mom On Timeout where I’m serving up real food for real families! Dinners, desserts, and everything in between!
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