Cornflake Chip Marshmallow Cookies-Momofuku Style
Momofuku Milk Bar’s Cornflake Chip Marshmallow Cookies are more than just a dessert; they’re a textural marvel, a nostalgic trip, and frankly, a culinary masterpiece that has captured the hearts (and taste buds) of cookie lovers everywhere. When I first encountered these legendary treats, I was immediately hooked. It’s that incredible symphony of salty, crunchy cornflakes, chewy, gooey marshmallows, and rich, buttery cookie dough that makes them so utterly irresistible. What truly sets these Momofuku Milk Bar’s Cornflake Chip Marshmallow Cookies apart is their daring yet harmonious flavor profile. It’s a delightful dance between sweet and savory, a bold innovation that feels both comforting and excitingly new. Prepare yourself, because we’re about to embark on a journey to recreate this iconic, craveable cookie in your very own kitchen!

Momofuku Milk Bar’s Cornflake Chip Marshmallow Cookies
Oh, these cookies. They’re legendary for a reason. The sweet, salty, crunchy, chewy, gooey, utterly delightful experience that is Momofuku Milk Bar’s Cornflake Chip Marshmallow Cookies is something everyone should try at least once. Forget your average chocolate chip cookie; this is an adventure for your taste buds. The secret lies in the incredible texture and the perfect balance of flavors. We’re going to break down the magic, starting with the all-important components.
Ingredients:
For the Cornflake Crunch:
Instructions:
Let’s get started! The first thing we need to tackle is the Cornflake Crunch, as this forms the backbone of the incredible texture. Don’t skip this part; it’s where the magic begin extracts.
1. Prepare the Cornflake Crunch
In a large bowl, gently crush the 5 cups of Cornflakes. You don’t want them to turn into dust; aim for smaller pieces that will still retain some crunch. Think of it as creating a more uniform cereal texture. Then, add the 1/2 cup of malted milk powder and the 3 tablespoons of granulated sugar to the crushed Cornflakes. Stir everything together until it’s well combined. This mixture will be added to the cookie dough later, and it’s what gives these cookies their signature, irresistible crunch and a subtle, toasty depth of flavor. Set this aside once mixed.
2. Cream the Butter and Sugars
Now, let’s move on to the cookie dough itself. In a large mixing bowl, beat together the 1 cup of softened unsalted butter with the 1 1/4 cups of granulated sugar and the 2/3 cup of packed light brown sugar. You want to cream these together until the mixture is light and fluffy. This process incorporates air into the dough, which is crucial for cookie texture. Scrape down the sides of the bowl a few times to ensure everything is evenly mixed. This usually takes about 3-5 minutes with an electric mixer.
3. Add Wet Ingredients and Dry Ingredients Separately
Once the butter and sugar mixture is beautifully creamy, it’s time to add the wet ingredients. Beat in the 1 large egg and the 1/2 teaspoon of vanilla extract until just combined. Be careful not to overmix here. In a separate medium bowl, whisk together the 1 1/2 cups of all-purpose flour, 1/2 teaspoon of baking powder, 1/2 teaspoon of baking soda, and 1 1/2 teaspoons of salt. This ensures your leavening agents and salt are evenly distributed throughout the dry ingredients, preventing pockets of saltiness or uneven rising.
4. Combine Wet and Dry, Then Fold in the Goodies
Now, gradually add the dry ingredients to the wet ingredients, mixing on low speed until just combined. Again, resist the urge to overmix. Overmixing develops the gluten in the flour, which can lead to tough cookies. Once the flour is mostly incorporated, it’s time for the star players: the Cornflake Crunch, mini chocolate chips, and marshmallows. Gently fold in the 3 cups of prepared Cornflake Crunch, the 2/3 cup of mini chocolate chips, and the 1 1/4 cups of mini marshmallows. Use a spatula or a wooden spoon for this step. You want to distribute these additions evenly throughout the dough without breaking them down too much. The dough will be quite thick and lumpy due to the additions, and that’s exactly what you want!
5. Bake the Cookies to Perfection
Preheat your oven to 350°F (175°C). Line baking sheets with parchment paper or silicone baking mats. Drop rounded tablespoons of dough onto the prepared baking sheets, leaving about 2 inches between each cookie to allow for spreading. These cookies spread quite a bit, so don’t overcrowd your baking sheets. Bake for 10-13 minutes, or until the edges are golden brown and the centers are still slightly soft and gooey. They will continue to cook and set up as they cool. For an extra special touch, you can press a few extra mini marshmallows into the tops of the cookies just as they come out of the oven. Let the cookies cool on the baking sheets for about 5-10 minutes before carefully transferring them to a wire rack to cool completely. This allows them to firm up without breaking. Enjoy the ultimate cookie experience!

Conclusion:
There you have it – the ultimate guide to recreating Momofuku Milk Bar’s iconic Cornflake Chip Marshmallow Cookies in your own kitchen! These cookies are an absolute triumph of texture and flavor, boasting that irresistible salty crunch from the cornflakes perfectly balanced by the sweet, gooey marshmallow and rich chocolate chips. It’s a flavor combination that’s both nostalgic and surprisingly sophisticated, making them a guaranteed crowd-pleaser for any occasion.
I love serving these warm, fresh from the oven, when the marshmallows are at their meltiest. They’re fantastic on their own, but I also think they pair wonderfully with a cold glass of milk or even a scoop of vanilla ice cream for an extra decadent dessert experience. Don’t be afraid to get creative with variations! You could try adding a pinch of cinnamon to the cookie dough, or perhaps a swirl of caramel sauce into the batter before baking. For a nuttier twist, toasted pecans or walnuts would be a delightful addition.
I truly encourage you to give this recipe a try. While it might seem a little involved, the payoff is absolutely worth it. The sheer joy of biting into one of these perfectly executed Cornflake Chip Marshmallow Cookies is an experience you won’t soon forget. Happy baking!
Frequently Asked Questions:
Why are these cookies called Cornflake Chip Marshmallow Cookies?
They are named after the key ingredients that define their unique flavor and texture profile: crushed cornflake cereal for crunch, chocolate chips for classic cookie goodness, and marshmallows for that signature gooey sweetness.
Can I make the dough ahead of time?
Yes! The dough can be refrigerated for up to 3 days. This chilling period actually helps to develop the flavors and results in an even better cookie texture. Just make sure to bring it to room temperature for a bit before scooping and baking.
What if I don’t have any cornflake cereal?
While cornflakes are integral to the classic flavor, you could experiment with other crunchy, lightly sweetened cereals. However, be aware that this will alter the signature taste and texture of the Momofuku Milk Bar origin extractal.

Momofuku Milk Bar’s Cornflake Chip Marshmallow Cookies
Chewy, sweet, and satisfying cookies packed with the iconic flavors of cornflakes, chocolate chips, and marshmallows, inspired by Momofuku Milk Bar.
Ingredients
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1 cup (2 sticks) unsalted butter (room temperature)
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1 1/4 cups granulated sugar
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2/3 cup light brown sugar (packed)
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1 large egg
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1/2 tsp vanilla extract
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1 1/2 cups all-purpose flour
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1/2 tsp baking powder
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1/2 tsp baking soda
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1 1/2 tsp salt
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3 cups Cornflake Crunch
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2/3 cup mini chocolate chips
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1 1/4 cups mini marshmallows
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5 cups Cornflakes
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1/2 cup malted milk powder
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3 Tbsp granulated sugar
Instructions
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Step 1
For the Cornflake Crunch: In a large bowl, combine 5 cups Cornflakes, 1/2 cup malted milk powder, and 3 Tbsp granulated sugar. Stir well to combine. -
Step 2
In a large bowl, cream together 1 cup unsalted butter, 1 1/4 cups granulated sugar, and 2/3 cup light brown sugar until light and fluffy. -
Step 3
Beat in 1 large egg and 1/2 tsp vanilla extract until well combined. -
Step 4
In a separate bowl, whisk together 1 1/2 cups all-purpose flour, 1/2 tsp baking powder, 1/2 tsp baking soda, and 1 1/2 tsp salt. -
Step 5
Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Fold in 3 cups Cornflake Crunch, 2/3 cup mini chocolate chips, and 1 1/4 cups mini marshmallows. -
Step 6
Drop rounded tablespoons of dough onto baking sheets lined with parchment paper, about 2 inches apart. -
Step 7
Bake at 350°F (175°C) for 10-12 minutes, or until edges are golden brown and centers are still slightly soft. -
Step 8
Let cool on the baking sheets for a few minutes before transferring to a wire rack to cool completely.
Important Information
Nutrition Facts (Per Serving)
It is important to consider this information as approximate and not to use it as definitive health advice.
Allergy Information
Please check ingredients for potential allergens and consult a health professional if in doubt.
