Irresistible Chocolate Marshmallow Cookies: The Ultimate Fudgy Delight
Prepare to fall in love with these heavenly **Chocolate Marshmallow Cookies**. Imagine a rich, intensely chocolatey cookie base, so moist and fudgy it tastes like a brownie, perfectly crowned with a soft, pillowy marshmallow. To elevate this delightful treat even further, each marshmallow is then draped in a silky, decadent chocolate frosting. This irresistible combination creates a cookie that is truly a dream come true for every chocolate aficionado. It’s not just a cookie; it’s an experience – a hidden treasure waiting to be discovered with every delightful bite.
If you find yourself enchanted by these magnificent Chocolate Marshmallow Cookies, you’ll surely adore our other sweet creations. Be sure to explore our delightful Hot Cocoa Cookies, which perfectly capture the cozy essence of a warm drink, and our classic Chocolate Crinkle Cookies, known for their tender texture and beautiful powdered sugar coating.

Why These Chocolate Marshmallow Cookies Are a Must-Try
There’s something inherently delightful about a dessert with a hidden surprise, isn’t there? Much like the unexpected burst of jelly in a donut, the creamy filling in a cupcake, or the molten core of a lava cake, these cookies offer a charming secret. That’s precisely why these Chocolate Marshmallow Cookies hold such a special place in our hearts – and on our dessert tables.
Each cookie begins with an incredibly rich, deeply flavored base that boasts the best qualities of a decadent brownie. It’s chewy, moist, and profoundly chocolatey. But the magic truly happens when this exquisite base is topped with a soft, gooey marshmallow, which then disappears under a blanket of luscious, fudgy chocolate glaze. The marshmallow is ingeniously hidden, transforming each bite into a delightful discovery. It’s an instant burst of sweet, sticky joy that complements the deep chocolate flavor beautifully.
Imagine the comforting taste of a hot chocolate, but in an irresistible cookie form – perfectly portable and enjoyable all year round! Whether you’re seeking a cozy treat for a chilly evening, a standout dessert for a gathering, or simply a moment of pure indulgence, these cookies deliver. Their unique combination of textures and flavors makes them utterly unforgettable and guaranteed to be a crowd-pleaser.
Essential Ingredients for Your Chocolate Marshmallow Masterpiece
Crafting the perfect batch of Chocolate Marshmallow Cookies starts with understanding the role of each ingredient. Here’s a detailed look at what you’ll need to create these extraordinary treats, along with some helpful tips for optimal results.

For the Fudgy Chocolate Cookies:
- All-Purpose Flour: The foundation of our cookie’s structure. For best results, measure your flour by weighing it (around 270g) or by using the spoon-and-level method to avoid a dense cookie.
- Unsweetened Cocoa Powder: This is where the deep chocolate flavor comes from. Regular unsweetened cocoa powder works wonderfully, delivering that classic chocolate taste. For an even darker, more intense flavor, you could experiment with Dutch-processed cocoa.
- Baking Soda: Our leavening agent. It reacts with other ingredients to create a light lift, preventing the cookies from becoming overly dense and ensuring that delightful brownie-like texture.
- Salt: A crucial flavor enhancer. It balances the sweetness of the sugar and deepens the chocolate notes, making every bite more complex and satisfying.
- Unsalted Butter: Softened to room temperature. Using unsalted butter gives you precise control over the saltiness of your cookies. Room temperature butter creams beautifully with sugar, incorporating air for a tender crumb.
- Granulated Sugar: Provides sweetness and contributes to the cookie’s texture, helping it to spread slightly and achieve a crisp edge with a chewy center.
- Large Egg: Acts as a binder and adds richness and moisture to the dough. Ensure it’s at room temperature for better emulsification with the other wet ingredients.
- Milk: We typically use 2% milk, as it’s what we have on hand, but any milk variety (whole, skim, or even a non-dairy alternative) will work just fine to achieve the desired dough consistency.
- Vanilla Extract: A staple in baking, real vanilla extract enhances the chocolate flavor and adds a beautiful aromatic depth to the cookies. Don’t skimp on quality here!
- Large Marshmallows: Not the extra-large roasting marshmallows, but the standard large-sized ones you typically find in a bag. These will be cut in half to create the perfect gooey center.
For the Silky Chocolate Frosting:
- Butter: This forms the rich base of our fudgy frosting. It will be melted to create a smooth, pourable glaze.
- Cocoa Powder: Again, unsweetened cocoa powder is key for the frosting’s chocolate flavor.
- Powdered Sugar (Confectioners’ Sugar): Essential for a smooth, lump-free frosting. While sifting isn’t always necessary if you whisk vigorously, it’s a good practice if you want to ensure the silkiest finish.
- Milk: Used to adjust the consistency of the frosting, making it pourable yet thick enough to coat the marshmallows beautifully.
- Vanilla Extract: Just like in the cookies, vanilla amplifies the chocolate and adds another layer of flavor to the frosting.
Step-by-Step Guide: Crafting Your Chocolate Marshmallow Cookies
Baking these incredible Chocolate Marshmallow Cookies is a straightforward process, but paying attention to each step will ensure you achieve perfect results every time. Follow this detailed guide to create your new favorite chocolate treat.

Preparation is Key: Marshmallows and Dry Ingredients
- Preheat Oven & Prep Baking Sheets: Begin by preheating your oven to 375°F (190°C). Line two large baking sheets with parchment paper. This prevents sticking and makes for easy cleanup.
- Prepare the Marshmallows: Take your large marshmallows and carefully cut each one in half horizontally. The easiest method is to press a sharp knife straight down through the marshmallow, rather than sawing, to minimize stickiness. Don’t worry if they flatten slightly; you can gently reshape them before placing them on the cookies.
- Combine Dry Ingredients: In a medium bowl, whisk together the all-purpose flour, cocoa powder, baking soda, and salt until they are thoroughly combined. Set this bowl aside for later. This step ensures an even distribution of leavening and flavor throughout the cookie dough.
Crafting the Cookie Dough

- Cream Butter and Sugar: In a separate large bowl, or the bowl of a stand mixer fitted with the paddle attachment, beat the softened unsalted butter and granulated sugar together. Beat on medium-high speed for 2-3 minutes until the mixture is light, fluffy, and pale in color. Remember to scrape down the sides of the bowl a few times during this process to ensure everything is evenly incorporated. This creaming process is vital for introducing air into the dough, which contributes to the cookie’s tender texture.
- Incorporate Wet Ingredients: Add the large egg, milk, and vanilla extract to the creamed butter mixture. Beat until just combined. Don’t be alarmed if the mixture appears slightly separated or curdled at this stage; it will come together as you add the dry ingredients.
- Gradually Add Dry Ingredients: With the mixer on low speed, gradually add the reserved flour mixture to the wet ingredients. Mix until the flour is just combined and no streaks of dry ingredients remain. Be careful not to overmix, as this can lead to tough cookies. The dough will be noticeably soft and a bit sticky.
Baking and Adding the Marshmallow Surprise
- Scoop and Bake First Round: Using a medium cookie scoop (a 1 ¾-inch scoop is ideal), portion the sticky dough into balls and place them on your parchment-lined baking sheets, ensuring they are at least 2 inches apart to allow for spreading. Bake one sheet at a time for 8-10 minutes, or until the edges are set and the centers look slightly soft.
- Add Marshmallows & Second Bake: As soon as you remove the baking sheet from the oven, immediately press a cut marshmallow half into the center of each warm cookie, cut-side down. Return the baking sheet to the oven for an additional 2 minutes. This brief second bake allows the marshmallow to soften and melt slightly, adhering it to the cookie and transforming its texture into a wonderfully gooey center.
- Cool Completely: Remove the cookies from the oven and transfer them to a wire rack to cool completely. It’s crucial for the cookies to be fully cooled before applying the frosting, otherwise, the frosting will melt and slide off.
Creating the Decadent Chocolate Frosting

- Melt Butter: In a medium saucepan, gently melt the butter over low heat. Once fully melted, remove the saucepan from the heat.
- Whisk in Cocoa Powder: Add the cocoa powder to the melted butter and whisk vigorously until smooth and free of lumps.
- Finish the Frosting: Gradually whisk in the powdered sugar, milk, and vanilla extract until the frosting is smooth, glossy, and has a pourable but thick consistency. If it’s too thick, add a tiny bit more milk; if too thin, add a little more powdered sugar.
- Frost the Cookies: Once the cookies are completely cool, spoon about 1 tablespoon of the chocolate frosting over the top of each cookie. Carefully spread it to completely cover the marshmallow, creating a beautiful, seamless chocolate coating.
- Allow to Set: Let the frosted cookies sit at room temperature until the glaze has fully set, which may take an hour or two depending on humidity. This ensures a clean, non-sticky finish.

Expert Tips and Tricks for Perfect Chocolate Marshmallow Cookies
Achieving bakery-quality Chocolate Marshmallow Cookies is easy with a few insider tips. These pointers will help you navigate common baking challenges and ensure your cookies are consistently delicious.
- Even Baking: For uniform baking, always rotate your baking sheets halfway through the baking time. This helps compensate for any hot spots in your oven, ensuring all cookies are perfectly cooked.
- Marshmallow Magic: The second bake after adding the marshmallow is crucial. It not only ensures the marshmallow melts slightly and adheres firmly to the cookie but also transforms its texture, making it wonderfully soft and gooey rather than stiff. Placing the cut side down helps it melt evenly.
- Room Temperature Ingredients: Always use room temperature butter and eggs. This allows them to emulsify better, creating a smoother, more uniform dough and a lighter, more tender cookie.
- Do Not Overmix: Once you add the flour mixture, mix only until just combined. Overmixing develops the gluten too much, leading to tough, dry cookies instead of fudgy ones.
- Cooling is Crucial: Patience is a virtue, especially when it comes to frosting. Ensure your cookies are completely cool before applying the chocolate glaze. A warm cookie will cause the frosting to melt and run, resulting in a messy finish.
- Adjusting Frosting Consistency: If your frosting is too thick, add milk a teaspoon at a time until it reaches the desired pourable consistency. If it’s too thin, whisk in a tablespoon of powdered sugar at a time until it thickens.
- Cutting Marshmallows: If your knife sticks while cutting marshmallows, lightly grease it with a tiny bit of butter or cooking spray, or dip it in hot water between cuts.

Storage and Freezing Instructions
To keep your Chocolate Marshmallow Cookies tasting their best, proper storage is essential. Here’s how to ensure their freshness and longevity:
- Storing Baked Cookies: Once the chocolate glaze has fully set, store these cookies in an airtight container at room temperature. They will remain wonderfully fresh and moist for approximately 3 days. The frosting acts as a protective layer, helping the cookies retain their soft texture.
- Freezing Unbaked Dough: The unbaked cookie dough freezes exceptionally well. You can scoop the dough into balls, place them on a parchment-lined tray, and freeze until solid. Once firm, transfer the frozen dough balls to a freezer-safe bag or container. They will keep for up to 3 months. When ready to bake, simply place the frozen dough balls on a baking sheet and add a few extra minutes to the baking time, then proceed with the marshmallow step as usual.
- Freezing Baked Cookies: We haven’t thoroughly tested freezing these cookies after they are fully baked and frosted. While the cookie itself would likely freeze well, the marshmallow component might change in texture upon thawing, potentially becoming chewier or slightly deflated. If you decide to try it, wrap each cookie individually in plastic wrap and then place them in an airtight freezer-safe container. Thaw at room temperature.
Delightful Variations to Try
While these Chocolate Marshmallow Cookies are perfect as is, feel free to get creative and experiment with these delicious variations:
- Peppermint Twist: Add a ¼ teaspoon of peppermint extract to the cookie dough and/or the frosting for a festive, cooling flavor. Top with crushed candy canes.
- Nutty Crunch: Fold ½ cup of chopped pecans or walnuts into the cookie dough for added texture and a rich, nutty flavor.
- Different Marshmallows: Experiment with flavored marshmallows if you can find them, such as toasted coconut marshmallows or strawberry marshmallows, for a unique twist.
- Espresso Boost: Add 1 teaspoon of instant espresso powder to the cocoa powder in the cookie dough. This won’t make the cookies taste like coffee, but it will significantly deepen and intensify the chocolate flavor.
- Sprinkle Fun: Before the chocolate frosting sets, sprinkle with festive sprinkles, mini chocolate chips, or edible glitter for a touch of whimsy.
- Salted Caramel Drizzle: After the chocolate frosting has set, drizzle a little homemade or store-bought salted caramel sauce over the cookies for an extra layer of indulgence.

More Irresistible Cookie Recipes to Explore
If you’re a cookie enthusiast like us, you’ll love diving into these other fantastic cookie recipes from our kitchen:
- Classic Peanut Butter Blossoms
- Soft & Chewy Chocolate Chip Pudding Cookies
- Nana’s Comforting Oatmeal Cookies
- Delightful Whoopie Pies
- Chewy Coconut Macaroons
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Chocolate Marshmallow Cookies Recipe
Author: Deborah Harroun
A rich, brownie-like chocolate cookie topped with a gooey marshmallow and finished with a smooth chocolate frosting – a chocolate lover’s dream!
- Prep Time:
- 15 minutes
- Cook Time:
- 24 minutes
- Total Time:
- 39 minutes
- Servings:
- 24 cookies
- Course:
- Dessert
- Cuisine:
- American
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Ingredients for Cookies:
- 2 1/4 cups all-purpose flour
- 3/4 cup unsweetened cocoa powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1/2 cup unsalted butter, softened
- 1 cup granulated sugar
- 1 large egg
- 1/2 cup milk
- 1 teaspoon vanilla extract
- 12 large marshmallows, halved horizontally
Ingredients for Frosting:
- 6 tablespoons butter
- 1/4 cup plus 2 tablespoons cocoa powder
- 3 cups powdered sugar
- 1/4 cup plus 2 tablespoons milk
- 1 teaspoon vanilla extract
Instructions:
- Preheat your oven to 375°F (190°C). Line 2 baking sheets with parchment paper.
- Cut each of the large marshmallows in half horizontally.
- In a medium bowl, whisk together the flour, cocoa powder, baking soda, and salt. Set aside.
- In the bowl of a stand mixer (or a large bowl with a hand mixer), beat the softened butter and granulated sugar together until light and fluffy, about 2-3 minutes.
- Add the egg, milk, and vanilla extract to the butter mixture, beating until just combined.
- Gradually add the reserved flour mixture to the wet ingredients, mixing on low speed until the dough is just combined and no dry streaks remain. The dough will be a bit sticky.
- Using a 1 3/4-inch cookie scoop, form balls of dough and place them at least 2 inches apart on the prepared baking sheets.
- Bake one sheet at a time for 8-10 minutes, or until the edges are set.
- Remove the baking sheet from the oven and immediately press a marshmallow half onto the center of each cookie (cut-side down).
- Return the baking sheet to the oven for an additional 2 minutes to soften the marshmallow.
- Remove from the oven and transfer the cookies to a wire rack to cool completely.
- To make the frosting: Melt the butter in a medium saucepan. Remove from heat.
- Whisk in the cocoa powder until smooth.
- Gradually whisk in the powdered sugar, milk, and vanilla extract until the frosting is smooth and has a pourable consistency.
- Once the cookies are completely cool, spread about 1 tablespoon of frosting over the top of each cookie, ensuring the marshmallow is fully covered.
- Allow the frosting to set completely at room temperature before serving.
Recipe Notes:
This recipe is adapted from Martha Stewart. Nutritional information is provided as an estimate only; actual counts may vary based on brands and products used.
Nutrition Information (Per Cookie Estimate):
- Serving: 1 cookie
- Calories: 163 kcal (8% Daily Value)
- Carbohydrates: 23g (8% Daily Value)
- Protein: 3g (6% Daily Value)
- Fat: 8g (12% Daily Value)
- Saturated Fat: 5g (31% Daily Value)
- Polyunsaturated Fat: 1g
- Trans Fat: 0g
- Cholesterol: 26mg (9% Daily Value)
- Sodium: 109mg (5% Daily Value)
- Fiber: 2g (8% Daily Value)
- Sugar: 11g (12% Daily Value)
Keywords: chocolate marshmallow cookies, marshmallow cookies, fudgy chocolate cookies
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