Cornflake Chip Marshmallow Cookies – Momofuku Inspired
Momofuku Milk Bar’s Cornflake Chip Marshmallow Cookies are legendary for a reason, and today, we’re diving deep into recreating that magic in our own kitchens. If you’ve ever experienced the unique textural symphony and sweet, salty, and utterly satisfying flavor profile of these iconic cookies, you know exactly why they’ve captured the hearts (and taste buds) of dessert lovers everywhere. These aren’t your average chocolate chip cookies; oh no. The genius lies in the unexpected combination of crunchy, toasted cornflakes, gooey, melted marshmallows, and the satisfying chew of a perfectly baked cookie base, all punctuated by bursts of salty chocolate chips. It’s a delightful paradox in every bite, offering a comforting familiarity with an exciting twist that makes the Momofuku Milk Bar’s Cornflake Chip Marshmallow Cookies so incredibly addictive.
Why We Love Them So Much
A Symphony of Textures and Flavors

Momofuku Milk Bar’s Cornflake Chip Marshmallow Cookies
Ah, the legendary Cornflake Chip Marshmallow Cookies from Momofuku Milk Bar. These aren’t just any cookies; they’re a symphony of textures and flavors, a delightful adventure that starts with a crispy, crunchy base, bursts with the gooey sweetness of marshmallows, and is studded with the satisfying chew of chocolate chips. While they might seem intimidating, with a little patience and a few key steps, you can recreate this iconic treat in your own kitchen. The magic lies in the “Cornflake Crunch” component, which elevates a simple cookie to something truly extraordinary. So, let’s get baking and dive into this irresistible recipe.
Ingredients:
For the Cornflake Crunch:
Preparing the Cornflake Crunch
Before we even think about cookies, we need to prepare the star of the show: the Cornflake Crunch. This is what gives these cookies their signature texture. In a large bowl, gently crush the 5 cups of Cornflakes. You don’t want them to turn into dust; aim for a mixture of smaller pieces and some slightly larger flakes for interesting texture. You can do this by hand or by placing them in a zip-top bag and lightly crushing them with a rolling pin. Once you have your desired crunch consistency, add the 1/2 cup of malted milk powder and 3 tablespoons of granulated sugar. Whisk everything together until it’s well combined. This mixture will be incorporated into the cookie dough later, providing that delightful, almost toffee-like crunch. Make sure to set this aside; we’ll come back to it.
Creating the Cookie Dough Base
Now, let’s get to the cookie dough itself. In a large mixing bowl, cream together the 1 cup of softened unsalted butter, 1 1/4 cups of granulated sugar, and 2/3 cup of packed light brown sugar. Beat this mixture with an electric mixer on medium speed until it becomes light and fluffy, resembling pnon-alcoholic ale yellow clouds. This process incorporates air, which is crucial for cookie texture. Next, beat in the 1 large egg and 1/2 teaspoon of vanilla extract until just combined. Scrape down the sides of the bowl as needed to ensure everything is evenly mixed.
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 dry ingredient mixture will add structure and leavening to our cookies. Gradually add the dry ingredients to the wet ingredients, mixing on low speed until just combined. Be careful not to overmix at this stage, as it can lead to tough cookies.
Folding in the Goodies
This is where the magic truly happens! Gently fold in the 3 cups of your prepared Cornflake Crunch. Make sure to distribute it evenly throughout the dough. Next, add the 2/3 cup of mini chocolate chips. Again, stir them in until they are dispersed throughout the batter. Finally, and this is the fun part, gently fold in the 1 1/4 cups of mini marshmallows. These little guys will melt and become gooey pockets of sweetness as the cookies bake, creating those irresistible marshmallow pockets. Be gentle when folding them in to avoid breaking them too much. The dough will be thick and somewhat chunky due to the Cornflake Crunch and marshmallows, and that’s exactly how it should be.
Shaping and Baking Your Masterpieces
Preheat your oven to 350 degrees Fahrenheit (175 degrees Celsius). Line baking sheets with parchment paper. Because this dough is quite substantial and has a lot of inclusions, it’s best to scoop it rather than try to roll it into perfect balls. Use a sturdy cookie scoop or two spoons to portion out generous mounds of dough onto the prepared baking sheets. Leave about 2 inches of space between each cookie, as they will spread slightly.
Bake for 10-12 minutes, or until the edges are golden brown and the centers still look slightly soft and underbaked. This is key for a chewy cookie! We want them to finish cooking on the hot baking sheet after they come out of the oven. They might not look completely done in the center, and that’s perfectly fine. The residual heat will continue to bake them.
Cooling and Enjoying
Once baked, 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 cooling period allows the cookies to set up properly and prevents them from falling apart. As they cool, the marshmallows will settle into gooey pockets, and the Cornflake Crunch will become perfectly crisp. Once completely cool, savor the incredible layers of texture and flavor that make these Momofuku Milk Bar Cornflake Chip Marshmallow Cookies so utterly addictive. They are best enjoyed within a few days, but are fantastic with a glass of milk, or even just on their own as a special treat.

Conclusion:
These Momofuku Milk Bar Cornflake Chip Marshmallow Cookies are an absolute triumph! They perfectly capture that nostalgic, comforting sweetness with a delightful crunch and chewy marshmallow pockets. The genius combination of buttery cookie dough, salty-sweet cornflake crunch, and gooey marshmallows creates a truly unforgettable treat that’s surprisingly achievable in your own kitchen. This recipe is a fantastic way to impress friends and family, or simply to treat yourself to something truly special.
For serving, I love enjoying these warm, straight from the oven, with a glass of cold milk. They also make for a wonderful dessert after a casual meal, perhaps alongside some fresh berries. If you’re feeling adventurous, consider a sprinkle of flaky sea salt on top before baking for an extra layer of flavor complexity, or even a drizzle of melted dark chocolate. Don’t be afraid to experiment! I wholeheartedly encourage you to give this recipe a try. You won’t regret embarking on this delicious adventure!
Frequently Asked Questions:
Q: Can I make the dough ahead of time?
A: Absolutely! The dough can be made and chilled in the refrigerator for up to 3 days, or frozen for up to 1 month. This makes them perfect for make-ahead baking for parties or spontaneous cookie cravings.
Q: My marshmallows are sinking. What can I do?
A: A common issue! To prevent marshmallows from sinking too much, try gently pressing them into the dough balls just before baking, rather than fully submergin extractg them. You can also try using slightly stnon-alcoholic ale marshmallows, as they tend to hold their shape better.
Q: What if I don’t have cornflakes?
A: While cornflakes are key to the iconic crunch, you could experiment with other lightly sweetened, crispy cereals like Rice Krispies or even crushed pretzel pieces for a different but still delicious salty-sweet contrast.

Momofuku Milk Bar’s Cornflake Chip Marshmallow Cookies
A delightful cookie recipe featuring crunchy cornflake crumbs, gooey marshmallows, and chocolate chips, inspired by Momofuku Milk Bar.
Ingredients
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1 cup 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: Combine 5 cups Cornflakes, 1/2 cup malted milk powder, and 3 Tbsp granulated sugar in a bowl. Mix well. -
Step 2
Cream together 1 cup (2 sticks) unsalted butter (room temperature), 1 1/4 cups granulated sugar, and 2/3 cup light brown sugar (packed) 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. -
Step 6
Fold in 3 cups Cornflake Crunch, 2/3 cup mini chocolate chips, and 1 1/4 cups mini marshmallows. -
Step 7
Drop rounded spoonfuls of dough onto a parchment-lined baking sheet. Bake at 350°F (175°C) for 10-12 minutes, or until edges are golden brown and centers are still soft. -
Step 8
Let cookies cool on the baking sheet for a few minutes before transferring them 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.
