Stepping into my kitchen the other day, I noticed a familiar scent wafting through the air, one that instantly transported me back to childhood and those blissful days spent at Costco. That sacred experience ignited my craving for the ultimate indulgence: Brown Butter Marshmallow Crispy Cookies. These delightful treats combine the irresistible crunch of rice krispies with the chewy goodness of mini marshmallows, all brought together by a rich, caramel-like aroma from the browned butter. What’s even better? They require zero chilling time, making them an ideal quick dessert for unexpected guests or a little afternoon indulgence. Easy to whip up and utterly satisfying, these cookies are bound to impress anyone who has ever wished for a homemade twist on a classic. Are you ready to dive into the world of sweet nostalgia and create a batch of your own?

Why are Marshmallow Crispy Cookies so amazing?
Irresistible flavor: The combination of brown butter and mini marshmallows creates a mouthwatering treat that’s both nostalgic and satisfying.
Quick and easy: With no chilling time required, these cookies are a breeze to whip up, perfect for impromptu gatherings or sweet cravings.
Textural delight: Enjoy a crispy exterior paired with a soft, chewy center that’s reminiscent of classic rice krispie treats.
Versatile options: Feel free to switch things up! Try using chocolate chips instead of marshmallows for a decadent twist or add toasted coconut for extra flavor.
Crowd-pleaser: These cookies are sure to impress friends and family, making them a hit at any gathering. For more delightful recipes, check out my Cheesecake Cookies Salted or Hot Chocolate Cookies.
Marshmallow Crispy Cookies Ingredients
For the Batter
• Salted Butter – Adds richness and depth; can substitute with unsalted butter, adding a pinch of salt for balance.
• Brown Sugar – Provides moisture and a warm, caramel-like flavor; essential for achieving the perfect sweetness.
• Granulated Sugar – Balances flavor and sweetness; important for creating a delightful texture.
• Egg – Binds the ingredients together and adds moisture; room temperature eggs yield the best results.
• Vanilla – Enhances flavor; consider using vanilla extract or paste for an elevated touch.
• Baking Soda – Creates lift in the cookies; ensure it’s fresh for optimal rising.
• Salt – Balances sweetness and enhances flavor; fine sea salt or kosher salt works well.
• All-Purpose Flour – Provides structure; you can substitute with a gluten-free 1:1 flour for a GF option.
For the Mix-Ins
• Rice Krispie Cereal – Adds delightful crunch; check for gluten-free options if needed.
• Mini Marshmallows – Contributes chewy goodness; feel free to replace with chocolate chips if preferred.
For Topping
• Flaked Salt – Enhances flavor and adds visual appeal; a light sprinkle is all you need to finish these amazing marshmallow crispy cookies!
Step‑by‑Step Instructions for Marshmallow Crispy Cookies
Step 1: Preheat the Oven
Start by preheating your oven to 350°F (175°C). While the oven heats, take a baking sheet and line it with parchment paper to ensure your cookies bake evenly and don’t stick. This preparation sets the stage for perfectly baked marshmallow crispy cookies!
Step 2: Brown the Butter
In a medium saucepan, melt 1 cup of salted butter over medium heat. Continue cooking for about 5 minutes, stirring frequently until the butter turns golden brown and emits a nutty aroma. Once done, remove it from heat and let it cool slightly to enhance the flavor before mixing.
Step 3: Combine Sugars with Butter
In a large mixing bowl, combine the browned butter with 1 cup of brown sugar and ½ cup of granulated sugar. Use a whisk or electric mixer to blend them together until the mixture is smooth and creamy. This step infuses the marshmallow crispy cookies with rich flavor and moisture.
Step 4: Mix in Egg and Vanilla
Add in 1 large egg and 1 teaspoon of vanilla extract to the bowl. Mix until well combined, ensuring everything is incorporated smoothly. The moisture from the egg along with the fragrant vanilla will heighten the sweetness of your delicious marshmallow crispy cookies.
Step 5: Incorporate Dry Ingredients
Gradually fold in 1 teaspoon of baking soda, ½ teaspoon of salt, and 2 cups of all-purpose flour. Mix gently to avoid overworking the dough. You want the ingredients just blended together, which will contribute to the ideal chewy texture of these cookies.
Step 6: Add the Crunch and Chew
Now, it’s time to add the essential mix-ins! Fold in 4 cups of rice krispie cereal and 2 cups of mini marshmallows until they’re evenly distributed throughout the dough. Ensure that the rice krispies and marshmallows are well-coated with the cookie dough for a delightful marshmallow crispy cookies experience.
Step 7: Shape the Cookies
Scoop generous amounts of cookie dough—about 3 tablespoons each—onto the prepared baking sheet. Space them about 2 inches apart, allowing room for spreading. Aim for 4 to 5 cookies per baking sheet to ensure they have enough space to bake perfectly without merging.
Step 8: Bake to Perfection
Place the baking sheet in the preheated oven and bake the cookies for 10-13 minutes. Keep an eye on them! They should have lightly golden edges while maintaining a slightly soft center, which will ensure a delectable chewy bite in every marshmallow crispy cookie.
Step 9: Finishing Touches
Once baked, remove the cookies from the oven and sprinkle a pinch of flaked salt on top while they are still warm. This last touch enhances the flavor and visual appeal. Allow them to cool on the baking sheet for a few minutes before transferring to a wire rack to cool completely.

Expert Tips for Marshmallow Crispy Cookies
-
Perfect Brown Butter: Pay close attention while browning the butter; it should be golden with a nutty aroma. Overcooked butter can become bitter.
-
Mix Gently: Avoid overmixing the dough after adding the flour. This helps maintain the desired chewy texture of the marshmallow crispy cookies.
-
Use Fresh Ingredients: Ensure your baking soda is fresh for the best rise. Expired baking soda might lead to dense cookies.
-
Avoid Overbaking: Keep a close watch during the last few minutes of baking. The cookies should be slightly soft in the center for that perfect chewiness.
-
Storage Tips: Store cookies in an airtight container at room temperature to keep them soft and fresh. Enjoy them within a few days for the best texture.
Make Ahead Options
These delicious Brown Butter Marshmallow Crispy Cookies are perfect for meal prep enthusiasts! You can prepare the cookie dough up to 3 days in advance by mixing all ingredients up to the point of shaping the cookies. Simply cover the bowl tightly with plastic wrap and refrigerate it to maintain freshness. When you’re ready to bake, scoop the dough onto a baking sheet and bake as directed, adding a couple of extra minutes if the dough is particularly cold. The cookies will still turn out just as delicious, ensuring your busy weeknights are sweetened with minimal effort!
Marshmallow Crispy Cookies Variations
Feel free to dive in and personalize your cookie experience with these tasty ideas!
-
Chocolate Swirl: Substitute mini marshmallows with chocolate chips for a rich, chocolaty twist. It’s a delightful complement to the brown butter flavor!
-
Nutty Crunch: Add ½ cup of chopped nuts, like pecans or walnuts, to the dough. The nuts bring a satisfying crunch that pairs beautifully with the chewy marshmallows.
-
Gluten-Free Option: Swap all-purpose flour with a gluten-free 1:1 baking blend for a hassle-free gluten-free version. Your friends won’t even know the difference!
-
Coconut Bliss: Incorporate 1 cup of toasted coconut flakes for an enticing tropical flavor. The coconut adds a rich texture and a hint of sweetness.
-
Spicy Kick: Add a pinch of cayenne pepper or cinnamon to your dough for a subtle warmth. It’s a surprising touch that enhances the flavor profile!
-
Caramel Drizzle: Drizzle melted caramel over baked cookies for an indulgent finish. It transforms these cookies into a decadent dessert!
-
Flavored Marshmallows: Use flavored mini marshmallows, such as strawberry or peppermint, for a fun twist. Each bite will surprise your tastebuds!
For more delightful inspiration, be sure to check out my Caramel Apple Cookies for a seasonal favorite or my rich Chocolate Thumbprint Cookies for some cookie adventure!
What to Serve with Brown Butter Marshmallow Crispy Cookies
Indulging in warm cookies creates the perfect opportunity to pair them with delightful accompaniments that elevate the whole experience.
- Cold Glass of Milk: A classic pairing; the coolness balances the warm, chewy cookies, enhancing every bite.
- Rich Hot Chocolate: The creamy sweetness of hot chocolate complements the caramel notes of the cookies, making it a cozy treat.
- Fresh Fruit Salad: The bright acidity of fresh fruit adds a refreshing contrast, cutting through the sweetness and making each bite exciting.
- Creamy Vanilla Ice Cream: A scoop of vanilla ice cream melts beautifully over warm cookies, creating a luscious mix of textures.
- Coffee or Espresso: The boldness of coffee enhances the cookies’ rich flavors, providing a perfect afternoon pick-me-up.
- Toasted Nuts: Adding in some toasted pecans or walnuts brings a nutty crunch, enhancing both flavor and texture while complementing the cookies’ chewiness.
- Cheesecake Dip: A light cheesecake dip with a hint of lemon zest pairs surprisingly well, adding a creamy dimension to your cookie feast.
- Chocolate Sauce Drizzle: For an indulgent treat, a drizzle of warm chocolate sauce over the cookies will satisfy any sweet tooth, enhancing the overall decadence.
- Coconut Macaroons: These chewy treats echo the texture of the cookies while introducing a coconut flavor that makes for a delightful combination at dessert time.
How to Store and Freeze Marshmallow Crispy Cookies
Room Temperature: Keep cookies in an airtight container at room temperature for up to 3 days to retain their delightful softness.
Refrigerator: If you want to store them longer, place the cookies in a tightly sealed container in the fridge for up to a week, but they may lose some chewiness.
Freezer: For extended storage, freeze the cookies in a single layer on a baking sheet for 1-2 hours, then transfer them to a freezer bag for up to 2-3 months.
Reheating: To enjoy cookies warm again, simply pop them in the microwave for about 10 seconds. This will restore that freshly baked goodness to your marshmallow crispy cookies!

Marshmallow Crispy Cookies Recipe FAQs
What type of butter should I use?
Absolutely! I recommend using salted butter for a richer flavor, but if you prefer unsalted, just add a pinch of salt to maintain balance in your cookies. The difference in taste can be subtle but definitely matters!
How should I store the cookies?
To keep your marshmallow crispy cookies fresh, store them in an airtight container at room temperature for up to 2-3 days. This ensures they stay soft and chewy. If you want to store them longer, you can refrigerate them for up to a week, but be aware they might lose some of that lovely chewiness.
Advertisement
Can I freeze marhsmallow crispy cookies?
Yes, you can! To freeze, place the cookies in a single layer on a baking sheet and put them in the freezer for about 1-2 hours until firm. Then, transfer them to a freezer-safe bag or container. They can last for 2-3 months. When you’re ready to enjoy, just pop them in the microwave for about 10 seconds, and you’ll have that fresh-baked taste again!
What if my cookies spread too much?
If you find your cookies spreading excessively, it could be due to warm butter or overmixing the dough. To prevent this, try chilling the dough for about 30-60 minutes before baking, or adding an extra tablespoon of flour. This will help maintain their shape.
Are these cookies pet-friendly?
Not at all! These marshmallow crispy cookies contain ingredients like chocolate (if you choose to add it) and sugar, which are not safe for pets. Always keep human treats out of reach of furry friends!
How can I tell if my cookies are baked perfectly?
Look for cookies that have lightly golden edges while the centers still appear a tad soft. They’ll firm up as they cool, ensuring a chewy texture. Avoid overbaking, as this can lead to a crispy rather than chewy bite!

Irresistible Marshmallow Crispy Cookies You’ll Love to Make
Ingredients
Equipment
Method
- Preheat the oven to 350°F (175°C) and line a baking sheet with parchment paper.
- Melt the salted butter in a medium saucepan over medium heat until golden brown, about 5 minutes.
- In a large mixing bowl, combine the browned butter with brown sugar and granulated sugar, mixing until smooth.
- Add in the egg and vanilla extract, mixing until well combined.
- Gradually fold in baking soda, salt, and flour, mixing gently to avoid overworking.
- Fold in the rice krispie cereal and mini marshmallows until evenly distributed.
- Scoop about 3 tablespoons of dough onto the prepared baking sheet, spacing them 2 inches apart.
- Bake for 10-13 minutes until edges are lightly golden, leaving a slightly soft center.
- Sprinkle flaked salt on top of warm cookies and allow to cool on the baking sheet for a few minutes.





