Cornflake Marshmallow Chocolate Chip Cookie Recipe

by Jillian Leslie on

Cornflake marshmallow chocolate chip cookie recipe!

If you're looking for a decadent and delicious cookie, then definitely check out our cornflake chocolate chip marshmallow cookie recipe.

We based this on the famous recipe found in Christina Tosi's Momofuku Milk Bar cookbook, but we made some tweaks to ours that we think make them a little easier to make, and give you a little thicker and chewier cookie.

The cookies are absolutely incredible! They have just the right amount of crunch from the cornflakes. They're chewy and sweet from the marshmallows, and chocolate-y from the chocolate chips. Plus, there's a little bit of milk powder in the recipe to make you think you're eating cookies and milk in one bite.

If you want to impress your friends, I recommend you make these cookies!



  • 1 3/4 cups all-purpose flour
  • 2 tablespoons nonfat milk powder
  • 1 1/2 teaspoons kosher salt
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 3/4 cup butter (1 1/2 sticks)
  • 1 cup granulated sugar
  • 1/2 cup lightly packed brown sugar
  • 1 egg
  • 1 teaspoon pure vanilla extract
  • 3 cups corn flake cereal
  • 2/3 cup mini chocolate chips
  • 1 1/2 cups mini marshmallows

Whisk the flour, milk powder, salt, baking powder, and baking soda in a large mixing bowl and set aside. Add the butter, sugar, egg, and vanilla into another mixing bowl. Beat on high for 2-3 minutes until creamy.

Add the dry ingredients in two batches, mixing on low until it just comes together. Add the chocolate chips, and mix on low. Add the marshmallows, mixing on low until evenly distributed. Reserve handful of the marshmallows to decorate the cookies. Add the corn flakes, and mix by hand so they don't get too crushed.

Here's the batter once the cornflakes and marshmallows have been stirred in.

Cornflake marshmallow chocolate chip cookie recipe!

Chill the dough for an hour.

Preheat the oven to 350F.

Roll the dough into golf ball sized balls, and place on a parchment lined or greased baking pan. Press a marshmallow or two into the top of each cookie. Give them ample room to spread. We cooked 8 at a time. Bake for 13 minutes.

Cornflake marshmallow chocolate chip cookie recipe!

Makes 2 dozen large cookies.

Here they are just out of the oven... And beyond insane!

Cornflake marshmallow chocolate chip cookie recipe!

Cornflake marshmallow chocolate chip cookie recipe!

Cornflake marshmallow chocolate chip cookie recipe!

So we created this recipe because we needed to make a mess (and what better way to make a mess than by making cookies). We have, in fact, teamed up with Delta Faucets to celebrate "mess."

But here's the truth, no food blogger wants to talk about mess, much less show theirs off. All we want to show is mouthwatering photos that look effortless.

But I love what Delta Faucets says about the whole thing: "Mess is evidence of a life well lived." And I couldn't agree more, especially having kids.

So, here's what my behind the scenes cookie mess looked like.

Cornflake marshmallow chocolate chip cookie recipe!

Cornflake marshmallow chocolate chip cookie recipe!

And I'm even more excited to show this off, because Delta Faucets is giving me a new kitchen faucet. Here's my current one so you see why I'm so thrilled.

Cornflake marshmallow chocolate chip cookie recipe!

And the cool thing about my new Delta Faucet is that it will incorporate new technology called Delta Touch2O ® Technology which allows users to turn on the water with a simple tap anywhere on the faucet spout, hub or handle. This helps reduce the spread of dirt and messes from hands to the faucet.

I love this idea because I tend to always have raw egg on my hands and I have to turn the water on by contorting my arm in this really funky way. Then I'm still worried I've contaminated everything.

We should be getting the faucet sometime in the next month and we're planning to install it ourselves, so you'll get to see the whole journey in my next two posts. Stay tuned...

And here's the cool part for you. Delta Faucets is running a  promotion on Facebook where if you submit a photo of your mess, you will be entered to win a Delta Faucets kitchen and bath prize package worth $2,400. You can learn more about it on the Delta Faucets site and enter the sweepstakes on the Delta Faucets Facebook page.

So to messy lives everywhere, I say, "Bring it on!" But because I'm a food blogger, I have to leave you with one more pretty shot.

Cornflake marshmallow chocolate chip cookie recipe!

Why do people treat mess like it’s a bad thing? It’s actually the evidence of a life well lived. When you’re out there making, creating, doing and playing, embrace your #HappiMess and let Delta kitchen and bath innovations help clean up so you can do it all again tomorrow.”


Disclosure: Compensation was provided by Delta via Mode Media. The opinions expressed herein are those of the author and are not indicative of the opinions or positions of Delta.


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