The Ultimate Chocolate Peanut Butter Marshmallow Cookies

By Sienna Whitman

On April 1, 2026

Servings

14 cookies

Prep time

15 minutes

Cooking time

12 minutes

Total time

27 minutes

Cuisine

American

There is nothing quite like biting into freshly baked Chocolate Peanut Butter Marshmallow Cookies. This recipe delivers a bakery-level experience directly from your home oven, perfectly balancing rich, dark cocoa with a sweet and salty finish. The visual appeal alone is enough to make your mouth water.

Every element in these Chocolate Peanut Butter Marshmallow Cookies is engineered for maximum indulgence. A thick, dark chocolate cookie base yields a cracked fudgy texture, hiding melted semi-sweet chocolate chips within the dough. The contrast of dark chocolate against the bright, gooey white marshmallow center creates a stunning presentation.

The crowning glory of this dessert is the generous dollop of creamy melted peanut butter pooling slightly near the center. Crowned with a large, perfectly toasted marshmallow sporting a charred golden-brown crust, every bite offers complex layers of flavor. Finished with small crumbs of chocolate and a subtle sprinkle of flaky sea salt, this is a masterclass in dessert architecture.

Detailed shot showing the gooey melted white interior of a toasted marshmallow on top of a fudgy dark chocolate cookie.
Achieve the perfect charred golden-brown crust using a simple culinary torch.

Why You Will Obsess Over These Chocolate Peanut Butter Marshmallow Cookies

  • Unmatched Textural Contrast: The cracked fudgy texture of the cookie perfectly supports the gooey melted white interior of the marshmallow.
  • Visual Perfection: The charred golden-brown crust of the marshmallow creates a breathtaking visual against the dark chocolate dough.
  • Sweet and Salty Balance: A generous dollop of creamy melted peanut butter and a subtle sprinkle of flaky sea salt cut through the rich sweetness.
  • Decadent Center: Melted semi-sweet chocolate chips remain visible within the dough, guaranteeing a luxurious, melting bite every single time.

Core Components for the Ultimate Fudgy Texture

Unsalted Butter: You will need 1/2 cup (113g) of unsalted butter, softened to room temperature. This provides the crucial fat base required to create a tender, melt-in-your-mouth crumb.

Brown and Granulated Sugar: A blend of 3/4 cup (150g) light brown sugar and 1/4 cup (50g) granulated sugar ensures moisture retention. The high brown sugar ratio is exactly what produces the deep, cracked fudgy texture.

Large Egg & Vanilla Extract: Use 1 large egg (50g) at room temperature and 1 tsp (5ml) pure vanilla extract. These act as binding agents while elevating the aromatic profile of the dark cocoa.

All-Purpose Flour: Measure exactly 1 1/4 cups (150g) of all-purpose flour using the spoon-and-level method. This provides enough structure to keep the cookies thick without making them cakey.

Dark Dutch-Process Cocoa Powder: Incorporate 1/2 cup (42g) of dark Dutch-process cocoa powder. This specific cocoa is essential for achieving the rich, dark chocolate cookie dough aesthetic.

Baking Soda & Salt: Add 1/2 tsp (3g) baking soda and 1/4 tsp (1.5g) fine sea salt to the dry ingredients. This chemical leavening creates the necessary lift and signature cracked surface.

Semi-Sweet Chocolate Chips: Fold in 1 cup (170g) of high-quality semi-sweet chocolate chips. These will melt into gooey pockets, remaining beautifully visible within the dough.

Creamy Peanut Butter: Have 1/4 cup (60ml) of traditional creamy peanut butter ready for the topping. Avoid natural peanut butters here, as conventional spreads melt smoothly into a creamy, pooling swirl.

Large Marshmallows: You need 6 to 8 large marshmallows, sliced in half horizontally. These will melt into a gooey white marshmallow center with a perfectly toasted topping.

Flaky Sea Salt: A final garnish of 1 tsp (3g) flaky sea salt is non-negotiable. It visually enhances the cookie and sharply contrasts the sugary toppings.

Essential Kitchen Gear for Toasted Perfection

  • Stand Mixer or Hand Mixer: Crucial for creaming the butter and sugars until light and fluffy.
  • Large Cookie Scoop: A 3-tablespoon (45ml) scoop ensures identically sized, thick cookies.
  • Light-Colored Baking Sheet: Prevents the bottoms of the cookies from burning while the dough bakes.
  • Culinary Kitchen Torch: The absolute best tool to achieve a charred golden-brown crust on your marshmallow without overbaking the cookie base.

Mastering the Chocolate Peanut Butter Marshmallow Cookies (Step-by-Step)

Whipping the Butter and Sugars

In the bowl of your stand mixer, combine 1/2 cup (113g) softened butter, 3/4 cup (150g) brown sugar, and 1/4 cup (50g) granulated sugar. Beat on medium-high speed for about 2-3 minutes until visibly pale and airy. This aeration process is what guarantees a tender interior beneath the cracked fudgy texture.

Incorporating the Wet Ingredients

Reduce the mixer speed to low and add 1 large egg (50g) and 1 tsp (5ml) vanilla extract. Mix just until the egg is fully absorbed into the batter. Scrape down the sides of the bowl to ensure a uniform consistency.

A close up shot of a thick baked dark chocolate cookie on parchment paper with melted chocolate chips, creamy peanut butter, and a perfectly toasted marshmallow. (Chocolate Peanut Butter Marshmallow Cookies)
A thick, cracked fudgy cookie base topped with a dollop of pooling peanut butter and a gooey toasted marshmallow.

Blending the Dark Chocolate Dry Mix

In a separate bowl, whisk together 1 1/4 cups (150g) flour, 1/2 cup (42g) dark cocoa powder, 1/2 tsp (3g) baking soda, and 1/4 tsp (1.5g) salt. Gradually add this dry mixture to your wet ingredients, mixing on low speed until just combined. Overmixing at this stage will ruin the delicate fudgy crumb.

Folding the Chocolate Chips and Chilling

Using a silicone spatula, gently fold in 1 cup (170g) semi-sweet chocolate chips. Scoop the dough into 3-tablespoon (45ml) balls and place them on a parchment-lined baking sheet. Chill the dough in the refrigerator for at least 30 minutes to guarantee a thick baked dark chocolate cookie dough.

Baking for the Perfect Fudgy Crackle

Preheat your oven to 350°F (175°C). Space the chilled dough balls 2 inches (5cm) apart on a crinkled white parchment paper-lined baking sheet. Bake for 11-13 minutes, or until the edges are set but the centers still look slightly underbaked and glossy.

Creating the Peanut Butter and Marshmallow Crown

Immediately upon removing the pan from the oven, press a slight indentation into the center of each hot cookie. Spoon a 1 tsp (5ml) dollop of creamy peanut butter into the center so it pools slightly. Top immediately with a halved large marshmallow, sticky side down, pressing gently so it adheres to the melting peanut butter.

Torching and Garnishing

Using a culinary kitchen torch, carefully toast the marshmallow until it develops a charred golden-brown crust. If you lack a torch, place the pan under the oven broiler for 30-60 seconds, watching constantly. Finish by scattering small crumbs of chocolate and a subtle sprinkle of flaky sea salt around the marshmallow base.

Pro-Level Tips for the Perfect Gooey Center

  • Do Not Skip the Chill Time: Chilling the dough solidifies the butter, preventing the cookies from spreading flat in the oven.
  • Underbake Slightly: Removing the cookies while the centers are still soft ensures that irresistible cracked fudgy texture once cooled.
  • Torch Control: Keep your kitchen torch moving constantly to achieve an even, golden-brown marshmallow topping without burning the peanut butter.
  • Use Conventional Peanut Butter: Natural peanut butters separate and can become oily when heated on the hot cookie surface.

Preserving the Fudgy Crumb: Storage and Reheating

To keep your Chocolate Peanut Butter Marshmallow Cookies fresh, store them in an airtight container at room temperature for up to 3 days. The toasted marshmallow topping will soften over time, but the cookie base will remain wonderfully dense and fudgy.

For the ultimate sensory experience, reheat a leftover cookie in the microwave for 8-10 seconds. This simple step reactivates the creamy melted peanut butter swirl and brings the gooey melted white interior back to life. Do not overheat, or the marshmallow will expand and collapse.

Perfect Pairings for Your Cookie Feast

These decadent treats are undeniably rich, so pairing them with complementary flavors elevates the experience. If you are hosting a party, serve these alongside a batch of our nostalgic fluffernutter brownies for the ultimate peanut butter spread. For a contrasting seasonal touch, our spiced pumpkin pie cookies make a phenomenal companion on a dessert tray.

If you have leftover marshmallows and want to continue the theme, whip up a batch of our strawberry marshmallow frosting for your next cake. Finally, if you crave more of that magical sweet-and-salty dynamic, our simple salted caramel truffles are guaranteed to please your guests.

Common Questions About Chocolate Peanut Butter Marshmallow Cookies

Yes. If you don’t have a kitchen torch, you can place the pan of topped cookies under your oven broiler for 30 to 60 seconds. Watch them constantly, as marshmallows go from golden-brown to completely burnt in seconds.

While you can use a small handful of mini marshmallows, slicing one large marshmallow in half provides a wider, flatter surface area that holds the charred golden-brown crust perfectly without falling off the cookie.

It is highly recommended to use conventional creamy peanut butter. Natural peanut butter tends to separate and release excess oil when exposed to the heat of the freshly baked cookie, which ruins the desired creamy pool.

Store them in an airtight container at room temperature for up to 3 days. To restore the gooey marshmallow center and melted peanut butter, microwave a single cookie for 8-10 seconds before eating.

Spreading usually occurs because the dough wasn’t chilled long enough, or the butter was too warm when mixing. Ensure you chill the dough for at least 30 minutes to solidify the fats before baking.

The Official Chocolate Peanut Butter Marshmallow Cookies Blueprint

A close up shot of a thick baked dark chocolate cookie on parchment paper with melted chocolate chips, creamy peanut butter, and a perfectly toasted marshmallow. (Chocolate Peanut Butter Marshmallow Cookies)

The Ultimate Chocolate Peanut Butter Marshmallow Cookies

Decadent, thick dark chocolate cookies loaded with chocolate chips, topped with a creamy melted peanut butter swirl, and crowned with a perfectly toasted marshmallow and flaky sea salt.
Prep Time 15 minutes
Cook Time 12 minutes
Total Time 27 minutes
Course Dessert, Snack
Cuisine American
Servings 14 cookies
Calories 245 kcal

Equipment

  • 1 Stand Mixer Essential for creaming butter and sugar.
  • 1 Culinary Kitchen Torch Used to toast the marshmallow topping perfectly.

Ingredients
  

Main Ingredients

  • 1/2 cup unsalted butter 113g, softened to room temperature
  • 3/4 cup light brown sugar 150g, packed
  • 1/4 cup granulated sugar 50g
  • 1 large egg 50g, room temperature
  • 1 tsp vanilla extract 5ml
  • 1 1/4 cups all-purpose flour 150g, spooned and leveled
  • 1/2 cup dark Dutch-process cocoa powder 42g
  • 1/2 tsp baking soda 3g
  • 1/4 tsp fine sea salt 1.5g
  • 1 cup semi-sweet chocolate chips 170g
  • 1/4 cup creamy peanut butter 60ml, conventional not natural
  • 8 large marshmallows halved horizontally
  • 1 tsp flaky sea salt 3g, for garnish

Instructions
 

Making the Cookies

  • In the bowl of your stand mixer, combine the softened butter, brown sugar, and granulated sugar. Beat on medium-high speed for about 2-3 minutes until visibly pale and airy.
  • Reduce the mixer speed to low and add the egg and vanilla extract. Mix just until the egg is fully absorbed into the batter, then scrape down the sides of the bowl.
  • In a separate bowl, whisk together the flour, dark cocoa powder, baking soda, and fine sea salt. Gradually add this dry mixture to your wet ingredients, mixing on low speed until just combined.
  • Using a silicone spatula, gently fold in the semi-sweet chocolate chips. Scoop the dough into 3-tablespoon (45ml) balls, place on a baking sheet, and chill in the refrigerator for at least 30 minutes.
  • Preheat your oven to 350°F (175°C). Space the chilled dough balls 2 inches (5cm) apart on a parchment-lined baking sheet and bake for 11-13 minutes, until the edges are set but centers are still slightly glossy.
  • Immediately upon removing the pan from the oven, press a slight indentation into the center of each hot cookie. Spoon a 1 tsp (5ml) dollop of creamy peanut butter into the center, then top immediately with a halved marshmallow, sticky side down.
  • Using a culinary kitchen torch, carefully toast the marshmallow until it develops a charred golden-brown crust. Garnish with a subtle sprinkle of flaky sea salt and small chocolate crumbs.

Notes

Tip 1: Do not skip chilling the dough, as it prevents the cookies from spreading too thin.
Tip 2: Use conventional creamy peanut butter rather than natural peanut butter for the best melting consistency.
A towering stack of thick baked dark chocolate cookies featuring melted peanut butter, toasted marshmallows, and flaky sea salt. (Chocolate Peanut Butter Marshmallow Cookies)
Save these irresistible Chocolate Peanut Butter Marshmallow Cookies to your favorite dessert board!

Share Your Decadent Creations With Us

Creating these Chocolate Peanut Butter Marshmallow Cookies is a truly rewarding culinary project that yields bakery-quality results. The combination of the dark fudgy base, the creamy melted peanut butter swirl, and that perfectly torched marshmallow is an experience you won’t forget.

If you mastered the gooey center and achieved the perfect charred marshmallow crust, we want to see it! Pin this recipe to your dessert boards and tag us over on Pinterest. Don’t forget to leave a comment and a five-star rating below to let us know how your cookies turned out!

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