Welcome to a world of unparalleled cookie bliss! Prepare to be amazed by these **OMG Reese’s Peanut Butter Cup Marshmallow Cookies**. Imagine sinking your teeth into a giant, impossibly soft peanut butter cookie, generously studded with gooey, toasted marshmallows, chunks of classic Reese’s Peanut Butter Cups, rich milk chocolate chips, and an extra burst of creamy peanut butter chips. This isn’t just a cookie; it’s an experience, a symphony of flavors and textures designed to delight every single one of your senses. Once you bake a batch, trust us, they won’t last long!
For those who can’t get enough of this divine combination, you might also love our Easy Fluffy Chocolate Marshmallow Peanut Clusters, the irresistible Reese’s S’mores Graham Cracker Candy, and the heavenly Chocolate Peanut Butter Marshmallow Squares. Each offers a unique spin on these beloved flavors.

Why These Reese’s Peanut Butter Marshmallow Cookies Are a Must-Bake
This **Reese’s Peanut Butter Marshmallow Cookie recipe** isn’t just good; it’s a true game-changer. Is there anything quite as comforting and universally loved as a fresh-baked cookie? The moment someone mentions the word ‘cookies,’ ears perk up, and smiles spread. And when those cookies are homemade and as spectacularly delicious as these, it’s a moment of pure joy!
Every peanut butter cookie enthusiast will instantly fall head over heels for these treats. They are lavishly loaded with a delightful mix of melting marshmallow pockets, generous pieces of Reese’s Peanut Butter Cups, and a dual dose of both peanut butter and chocolate chips. If your heart sings for the classic trio of peanut butter, chocolate, and marshmallow, then this peanut butter cookie recipe is absolutely perfect for you. It’s an indulgence that promises to satisfy even the most intense sweet cravings.
With each decadent bite, you’ll uncover a harmonious blend of flavors. The creamy, rich notes of peanut butter are perfectly balanced by the sweet, yielding texture of marshmallows, all complemented by the deep, luxurious taste of chocolate. This creates a symphony of sensations that dances on your palate. We pour our passion into every batch, ensuring that each cookie delivers the same consistently delicious and heartwarming taste. Whether it’s a casual evening treat or a show-stopping dessert, these cookies are crafted with love and care, guaranteeing a memorable experience.
These versatile cookies are ideal for any gathering. They’re a guaranteed hit at lively parties, cherished family get-togethers, or simply as a well-deserved, indulgent treat for yourself after a long day. Trust us when we say that once you experience the magic of these cookies, you’ll find yourself irresistibly drawn back for more. Their unique combination of familiar flavors and comforting textures makes them utterly addictive and universally appealing, cementing their place as a new favorite in your baking repertoire.

So, why settle for mundane cookies when you can elevate your dessert game with these extraordinary Reese’s Peanut Butter Cup Marshmallow Cookies? If you enjoy these, you’ll also be captivated by our Disappearing Reese’s Marshmallow Chocolate Chip Blondies. They truly live up to their name – disappearing in no time!
Could it possibly get any better than these **Reese’s Peanut Butter Cup Marshmallow Cookies**? In our humble opinion, the only way to truly elevate this experience is to pair them with a frosty glass of cold milk, or better yet, sandwich a scoop of your favorite ice cream between two of these glorious cookies!

Essential Ingredients for Reese’s Peanut Butter Marshmallow Cookies
Prepare to fuse the very best of two confectionary worlds with these sensational Reese’s Peanut Butter Cup Marshmallow Cookies. Indulge in the signature rich, creamy chocolate and peanut butter essence of Reese’s Peanut Butter Cups, perfectly melded with the delightful, soft, and exquisitely gooey texture of marshmallows, all encased within a robust, flavorful peanut butter cookie. These cookies are an absolute revelation for any dessert lover, especially those with a pronounced sweet tooth. They are an undeniable must-try that promises to become a cherished addition to your recipe collection!
Peanut Butter Marshmallow Cookies Recipe Ingredients:
- Unsalted butter, softened to room temperature for optimal creaming
- Granulated sugar, providing essential sweetness and contributing to a crisp edge
- Light brown sugar, adding moisture, chewiness, and a subtle molasses flavor
- Creamy peanut butter (or crunchy for added texture), the heart of our cookie flavor
- Large eggs, binding agents that add structure and richness
- Pure vanilla extract, enhancing all the sweet flavors
- All-purpose flour, the foundational dry ingredient for structure
- Baking soda, for leavening and creating a soft, tender crumb
- Salt, a crucial ingredient to balance the sweetness and deepen flavors
- Mini marshmallows, which melt and toast to perfection, creating gooey pockets
- Mini Reese’s Peanut Butter Cups, coarsely chopped or kept whole, for iconic flavor bursts
- Reese’s Peanut Butter Chips, intensifying the peanut butter experience
- Ghirardelli Milk Chocolate Chips or semi-sweet chocolate chips, for luxurious chocolate notes

Step-by-Step Instructions: How to Make Reese’s Peanut Butter Marshmallow Cookies
Crafting these delectable Reese’s Peanut Butter Marshmallow Cookies is a straightforward process, promising a rewarding baking experience and a truly unforgettable treat. Follow these simple steps to bring these extraordinary cookies to life in your own kitchen:
- Prepare Your Oven: Begin by preheating your oven to 350°F (175°C). This ensures the oven is at the correct temperature for even baking from the moment your cookies go in.
- Cream Wet Ingredients: In a large mixing bowl, combine the softened unsalted butter, granulated sugar, light brown sugar, creamy peanut butter, large eggs, and vanilla extract. Use an electric mixer to beat these ingredients together until they are light, fluffy, and well combined. This step is crucial for incorporating air and creating a tender cookie texture.
- Add Dry Ingredients: Gently add the all-purpose flour, baking soda, and salt to the wet mixture. Mix on low speed or stir by hand until the dry ingredients are just incorporated. Be careful not to overmix, as this can lead to tough cookies.
- Fold in the Goodies: With a spatula, carefully fold in the chocolate chips, peanut butter chips, chopped Reese’s Peanut Butter Cups, and mini marshmallows. Distribute them evenly throughout the dough.
- Scoop the Dough: Using a 1/4 cup ice cream scoop or a standard cookie scoop, portion out generous balls of dough onto parchment-lined cookie sheets. Space them out, allowing room for spreading (we recommend about 6 large cookies per sheet). For a slightly neater appearance, you can gently roll each scoop into a smooth ball before placing it on the sheet.
- Slightly Flatten: Use the palm of your hand to gently flatten each scoop of dough slightly. This helps ensure even baking and a lovely, rustic cookie shape.
- Bake to Perfection: Place the cookie sheets in your preheated oven and bake for 10-12 minutes. The cookies should be lightly golden at the edges, and the marshmallows should be soft and toasted, but not entirely caramelized or burned. If your dough was chilled, you might need to add a few extra minutes to the baking time.
- Cool on Sheet: Once baked, remove the chocolate chip cookies from the oven, but here’s a crucial tip: do NOT move them off the baking sheet immediately. Allow them to cool on the baking sheet for 5-10 minutes. This resting period is essential as the cookies are still setting up and are very delicate when hot. Attempting to move them too soon will likely cause them to fall apart.
- Transfer and Enjoy: After cooling slightly on the baking sheet, carefully transfer the cookies to a wire cooling rack to cool completely. This recipe yields approximately 18 large, incredibly fluffy and flavorful cookies with a delightful chocolate and peanut butter twist!

Expert Tips for Baking Flawless Peanut Butter Marshmallow Cookies!
While this peanut butter marshmallow cookie recipe is relatively straightforward, a few key considerations will significantly enhance your baking experience and ensure you achieve the perfect soft, gooey texture every time. These tips are designed to make your journey to cookie perfection as smooth and enjoyable as possible:
- Precision Timing is Key: For your initial batches, we highly recommend timing the baking process with utmost precision. This is crucial because you absolutely do not want to over-bake these cookies. Over-baking will result in a dry, hard texture, completely missing the desired goal of soft, wonderfully gooey cookies. Keep a close eye on them towards the end of the baking time.
- Jumbo Cookie Strategy: We designed this recipe for what we affectionately call “jumbo cookies.” To achieve this impressive size, use a 1/4 cup measure (the size of a standard ice cream scoop) for each cookie dough ball. If you opt to make smaller cookies, remember to significantly adjust your baking time downwards and refer back to step 1 for guidance on achieving the ideal doneness.
- Parchment Paper is Your Friend: Always line your baking trays with parchment paper. This simple step prevents sticking, especially with the melting marshmallows, and ensures easy cleanup. Bake them at 350°F (175°C) for 10-12 minutes. This temperature and time allow the marshmallows to become beautifully toasted and soft without fully caramelizing and melting into a sticky mess.
- Post-Oven Resting Period: It’s important to remember that cookies continue to bake and set once they are removed from the oven. Therefore, after baking, **DO NOT** attempt to remove them from the baking sheet for at least 5-10 minutes. They will still be delicate and appear slightly under-cooked, and they will tear apart if you try to transfer them too soon. Patience here pays off immensely!
- Grease Your Spatula: When it’s finally time to transfer the cooled cookies from the baking sheet to a cooling rack or foil, lightly coat your spatula with a non-stick spray. Any exposed marshmallow on the bottom of the cookie can become sticky and cling to the spatula, potentially breaking your perfectly formed cookie. A greased spatula ensures a clean, smooth transfer.
- Proper Storage for Freshness: Once your cookies have cooled completely to room temperature, transfer them to a sealed airtight container or a zip-lock bag. Stored this way at room temperature, they will maintain their incredible freshness and delightful chewiness for several days, ready for whenever a craving strikes.

The Irresistible Magic of Reese’s, Peanut Butter, and Marshmallow
Holy Cow! With a captivating combination of two timeless treats – the beloved chocolate peanut butter cups and the soft, fluffy allure of marshmallows – these cookies ascend to the pinnacle of indulgence. There’s a profound reason why this particular trio is a flavor match made in dessert heaven. Peanut butter, with its creamy, salty-sweet profile, provides a rich base that perfectly complements the sweetness of marshmallow. Marshmallows, when baked, transform into a molten, gooey wonderland, adding a delightful chew and a hint of toasted sugar. Finally, chocolate, whether in chip form or as chunks of Reese’s cups, introduces that classic bittersweet or milky depth that ties everything together. The result is a textural masterpiece and a flavor explosion that leaves you craving more. Are you truly ready to bite into bits of gooey, perfectly toasted marshmallow, an abundance of rich milk chocolate chips, iconic Reese’s peanut butter cups, and the irresistible crunch of peanut butter chips, all nestled within wonderfully soft and buttery peanut butter cookies?
You’ll very quickly understand why they’ve earned the legendary title: **OMG Reese’s Peanut Butter Cup Marshmallow Cookies**!
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OMG Peanut Butter Marshmallow Cookies
By Kim Lange
Hello! Big, soft peanut butter cookies loaded with toasted marshmallows, Reese’s Peanut Butter Cups, rich milk chocolate, and peanut butter chips! Trust me, these cookies are not going to last long!

Prep Time: 15 mins
Cook Time: 10 mins
Course: Dessert
Servings: 18 Cookies
Keyword: chocolate chip, cookies, marshmallow, peanut butter
Ingredients
- ¾ cup unsalted butter, softened
- ¾ cup granulated sugar
- 1 cup brown sugar
- 1 cup peanut butter (creamy or crunchy)
- 2 large eggs
- 1 tablespoon vanilla extract
- 2 ½ cups all-purpose flour
- 1 teaspoon baking soda
- ½ teaspoon salt
- 1 ½ – 2 cups mini marshmallows
- 1 bag of Mini Reese’s Peanut Butter Cups, chopped coarsely or whole
- 1 cup Reese’s Peanut Butter Chips
- 1 cup Ghirardelli Milk Chocolate Chips or Semi-sweet Chocolate Chips
Instructions
- Preheat the oven to 350F.
- Using a mixer, mix the butter, sugars, peanut butter, eggs, and vanilla together until combined.
- Add in the flour, soda, and salt and mix until just combined.
- Fold in chocolate chips, peanut butter chips, peanut butter cups, and marshmallows.
- Using an ice cream scoop, scoop the dough onto parchment-lined cookie sheets. (6 per sheet, these will be large, jumbo cookies!) You can roll these into balls if you wish as well.
- Use your hand and slightly flatten each scoop of dough.
- Cook for 10-12 minutes at 350. If your dough is chilled, allow a few more minutes for baking.
- Remove cookies from oven and cool on baking sheet 5-10 minutes before placing on cooling rack. If you try to remove them right after baking they will fall apart, so you need to wait for them to set up.
- Makes 18 large cookies.

Customization & Variations: Make Them Your Own!
While the classic Reese’s Peanut Butter Cup Marshmallow Cookie is perfection, there’s always room to experiment and personalize your batch. Consider adding a sprinkle of flaky sea salt on top before baking to enhance the chocolate and peanut butter flavors with a delightful salty contrast. For an extra nutty crunch, you could incorporate chopped roasted peanuts or even a mix of your favorite nuts directly into the dough. Swap out milk chocolate chips for dark chocolate for a richer, more intense flavor profile, or use white chocolate chips for a sweeter, creamier touch. You could also try different types of peanut butter cups, like white chocolate Reese’s, for a unique twist. Don’t be afraid to play with the ratios of marshmallows or chocolate chips to suit your preference – more gooeyness or more chocolatey goodness, the choice is yours!
Storage and Freezing Instructions
To keep your Reese’s Peanut Butter Cup Marshmallow Cookies fresh and delicious, store them in an airtight container at room temperature for up to 3-4 days. If you want to extend their life, you can freeze them! Once completely cooled, place the cookies in a single layer on a baking sheet and freeze for about an hour until firm. Then, transfer them to a freezer-safe bag or container, separating layers with parchment paper to prevent sticking. They will stay fresh in the freezer for up to 3 months. When ready to enjoy, simply thaw them at room temperature or warm them slightly in the microwave for that fresh-baked gooey texture. You can also freeze the unbaked cookie dough balls. Scoop the dough, flatten them slightly, and freeze on a baking sheet. Once firm, transfer to a freezer-safe bag. When you’re ready to bake, just place them on a parchment-lined sheet and add a few extra minutes to the baking time.
Frequently Asked Questions (FAQs)
We know you might have a few questions when diving into this delicious recipe. Here are some common queries and their answers to help you along:
- Can I use large marshmallows instead of mini marshmallows? While mini marshmallows are recommended for better distribution and melting, you can use larger marshmallows. Just cut them into smaller pieces (about ¼ inch) before adding them to the dough. Be aware that larger chunks might create bigger pockets of gooey marshmallow.
- My cookies spread too much. What went wrong? Over-spreading can be caused by several factors: your butter might have been too soft (verging on melted), your oven temperature might be too low, or you might have used too much flour. Ensure your butter is softened but still cool to the touch. Chilling the dough for 30 minutes before baking can also help prevent spreading.
- How do I ensure the marshmallows don’t burn? The key is to keep an eye on them during the last few minutes of baking. The edges should be golden, and the marshmallows should be puffed and slightly toasted, but not dark brown or smoking. If they start to look too dark, you can gently tent the cookies with foil for the remaining bake time.
- Can I make the dough ahead of time? Absolutely! You can prepare the cookie dough up to 2-3 days in advance. Store it covered in an airtight container in the refrigerator. When you’re ready to bake, let the dough sit at room temperature for about 15-20 minutes to soften slightly before scooping, and add a few extra minutes to the baking time.
- What if I don’t have Reese’s Peanut Butter Chips? While they enhance the peanut butter flavor, you can omit them and use an extra half cup of chocolate chips, or substitute with more chopped Reese’s Peanut Butter Cups for an equally delicious result.



