Cornflake Cookies {Easy No Bake Recipe!} - Belly Full (2024)

Published: April 17, 2021Author: Amy

Crispy, chewy Cornflake Cookies! These are a timeless easy sweet treat that only requires 6 simple ingredients, a few minutes, and no oven!

We love easy cookies so much! Other favorites include our super easy sugar cookies, peanut butter cookies, and snickerdoodle cookies.

These Cornflake Cookies date back decades and they’re just as popular today as they were when we were kids. There’s a reason why some treats stand the test of time. These are a quick, easy, tasty, affordable, irresistible treat that doesn’t even require turning on the oven.

Cornflake Cookie Recipe

These cookies are easy to make with just a few pantry ingredients. Here’s what you’ll need:

• Cornflakes: Just plain ‘ol cornflakes. You can use frosted cornflakes, but then they’re extra sweet.
• Peanut Butter: Creamy peanut butter is ideal for the best texture. If there are peanut allergies in your home, you can absolutely use sunflower butter or almond butter, as long as it’s not oily.
• Marshmallows: Traditional cornflake cookies call for corn syrup, but we use mini marshmallows instead. It provides the perfect gooey texture for the sauce mixture.
• Butter: We use unsalted butter to give us better control over the saltiness.
• Vanilla: This is optional, but just a little bit does make a difference.
• Salt: Just a pinch elevates the other flavors.

How to Make No Bake Cornflake Cookies

The process to whip these up is similar to making Rice Krispie Treats or our Cheerios Marshmallow Treats. Here’s the breakdown:
(Scroll below for the printable recipe card with exact measurements.)

You simply melt butter, peanut butter, and marshmallows together in a large stockpot until smooth and combined. Take off the heat and add in the vanilla and salt, then very gently stir in the cornflakes until they’re coated.

Form tablespoon-sized mounds of the mixture onto parchment-lined sheet trays. Let the cookies sit on the countertop (or pop them in the fridge) until set. That’s it!

Recipe Notes

• Be gentle: When stirring the mixture, be very gentle. The cornflakes are delicate and if you stir aggressively, they could all break into tiny bits.
• Use a cookie scoop: Using a tablespoon sized cookie scoop to form the mounds makes it easier.
• Add-ins: This recipe is a great base to add in fun mixins, like mini chocolate chips or coconut flakes. Or top with sprinkles or drizzle with melted chocolate. I’ve also seen the mixture dyed green and formed into cornflake wreath cookies for Christmas – so cute!

Storing Cornflake Marshmallow Cookies

• How long does it take Cornflake Cookies to set? These cookies take about an hour on the countertop to dry and set. You can speed up the process by placing them in the fridge, if you want. Once they set, they’ll become firm and lose that stickiness. If you try to eat them too soon, they’ll completely fall apart.
• Storing Leftovers: Because of their delicate nature and tackiness, we recommend storing them in an air-tight container in a single layer. If you need to stack them, make sure there are sheets of parchment paper in between the layers. They will keep on the countertop for a few days or in the refrigerator for 1 week.
• Can you freeze cornflake cookies? Yep! Store in a freezer-safe container in a single layer or stack them with sheets of parchment paper in between to prevent them from sticking together. They can be frozen for up to 2 months. Thaw at room temperature.

Other No Bake Treats We Love

• Key Lime Pie
• No Bake Cookies
• Dole Whip
• Banana Pudding

I hope you love this delicious and simple recipe – be sure to give it a review below! Also don’t forget to follow Belly Full onFacebook,Instagram,Pinterest, andYouTube!