Chocolate Peanut Butter Cornflake Cookies Recipe
If you’re looking for a crowd-pleaser that’s unapologetically nostalgic and ridiculously easy, look no further than these Chocolate Peanut Butter Cornflake Cookies. Imagine the crispy snap of cornflakes bathed in a chocolatey, peanut buttery hug—each bite is chewy, crunchy, and stunningly satisfying. Whether you’re throwing together a last-minute treat for friends or sneaking a late-night snack, you’ll fall head over heels for their unbeatable flavor and simplicity. There’s no oven, no stress, just pure, joyful deliciousness waiting to happen.

Ingredients You’ll Need
-
Cornflake Cookies:
- 4 cups cornflake cereal
Chocolate Peanut Butter Mixture:
- 1 cup semi-sweet chocolate chips
- 1/2 cup creamy peanut butter
- 1/2 cup light corn syrup
- 1/2 cup granulated sugar
- 1 teaspoon vanilla extract
How to Make Chocolate Peanut Butter Cornflake Cookies
Step 1: Prep Your Tray
Line a large baking sheet with parchment paper—you’ll need a good landing space for your cookies so nothing sticks, and cleanup is a breeze. Give yourself plenty of room to work, since the mixture sets pretty quickly.
Step 2: Mix Sugar and Syrup
Grab your favorite saucepan and combine the light corn syrup and granulated sugar over medium heat. Stir continuously as the sugar dissolves and the mixture begins to bubble gently. This is what will give your cookies that beautiful chewy texture!
Step 3: Stir in Peanut Butter and Vanilla
Once your syrup-sugar blend is bubbling, swiftly remove it from the heat. Immediately stir in your creamy peanut butter and vanilla extract, mixing until everything is delightfully smooth and fragrant. The warmth will help the peanut butter melt and merge right in.
Step 4: Add Chocolate Chips
Quickly toss in the semi-sweet chocolate chips and keep stirring until they’re completely melted. Now you’ll have a glossy chocolate-peanut butter sauce—don’t be surprised if you’re tempted to taste it right away!
Step 5: Fold in Cornflakes
Pour in your cornflake cereal and gently fold the flakes into the chocolate mixture. Take your time and stir carefully, so you coat every flake while keeping that signature crunch intact. Avoid crushing the cereal as much as possible for the best texture.
Step 6: Shape the Cookies
Use a spoon or cookie scoop to drop mounds of the mixture onto your lined baking sheet. Aim for bite-sized rounds, pressing gently to keep everything together. Work fairly quickly—the cookies set up fast!
Step 7: Cool and Set
Let the Chocolate Peanut Butter Cornflake Cookies cool at room temperature for about 30 minutes, or until they’re firm to the touch. Once they’re set, you’re ready to dig in.
How to Serve Chocolate Peanut Butter Cornflake Cookies

Garnishes
Sometimes a little extra flourish goes a long way! A drizzle of melted white chocolate over the top creates a lovely contrast and elevates these cookies to festive status. For those who like salty with their sweet, sprinkle a pinch of flaky sea salt before the cookies fully set to really make all the flavors pop.
Side Dishes
Chocolate Peanut Butter Cornflake Cookies make an irresistible companion to a cold glass of milk or a strong cup of coffee, balancing the richness perfectly. If you’re entertaining, try pairing them with fresh berries or a simple vanilla ice cream for a fun, textured dessert plate.
Creative Ways to Present
These cookies love a little showmanship! Stack them high in clear treat bags for an adorable edible gift, or arrange them on a pretty platter for your next party. For holidays, use colored sprinkles or edible glitter while the cookies are still setting to match the season’s vibes.
Make Ahead and Storage
Storing Leftovers
Keep any leftover Chocolate Peanut Butter Cornflake Cookies in an airtight container at room temperature. They’ll stay fresh and crispy for up to a week—though they have a habit of disappearing much faster!
Freezing
For longer storage, arrange the cookies in a single layer in a freezer-safe bag or container. Place parchment between layers to prevent sticking. They freeze beautifully for up to 3 months, and you can sneak one right out of the freezer for a chilly treat.
Reheating
These cookies are perfectly delicious straight from the container—no reheating necessary! If you like a slightly softer texture, let a frozen cookie rest at room temperature for about 10 minutes before enjoying.
FAQs
Can I make Chocolate Peanut Butter Cornflake Cookies with natural peanut butter?
Yes, you can use natural peanut butter, but be aware that the texture may vary slightly. Stir the natural peanut butter very well beforehand to incorporate any separated oil, or your cookies may turn out a bit softer or more crumbly.
What can I use instead of corn syrup?
If you’d prefer not to use corn syrup, try substituting with honey or brown rice syrup. Both alternatives will slightly alter the flavor and texture but should still help your cookies hold their shape.
Are Chocolate Peanut Butter Cornflake Cookies gluten-free?
They can be! Just make sure to use certified gluten-free cornflakes, as some brands contain trace amounts of gluten. The remaining ingredients are all typically gluten-free.
Do these cookies need to be refrigerated?
Not at all! They actually maintain their best texture when stored at room temperature. Only refrigerate if your kitchen is especially warm or the cookies start to get soft.
How do I keep the cornflakes from getting crushed?
Be gentle when folding the cornflakes into the chocolate mixture. Use a large spatula and a light hand to coat everything evenly without breaking up the flakes too much—this keeps that satisfying crunch alive in every bite.
Final Thoughts
Give these Chocolate Peanut Butter Cornflake Cookies a try, and you might just find your new favorite no-bake treat. With minimal effort and maximum flavor, they’re pure comfort in every crunchy, chocolatey, peanut-buttery bite. Don’t be surprised if they disappear in record time—enjoy every last crumb!
Print
Chocolate Peanut Butter Cornflake Cookies Recipe
- Total Time: 15 minutes (plus cooling)
- Yield: 24 cookies 1x
- Diet: Vegetarian, Gluten-Free (if using certified gluten-free cornflakes)
Description
These Chocolate Peanut Butter Cornflake Cookies are a sweet and crunchy treat that requires no baking. With a perfect balance of chocolate and peanut butter flavors, these easy-to-make cookies are great for satisfying your sweet tooth.
Ingredients
Cornflake Cookies:
- 4 cups cornflake cereal
Chocolate Peanut Butter Mixture:
- 1 cup semi-sweet chocolate chips
- 1/2 cup creamy peanut butter
- 1/2 cup light corn syrup
- 1/2 cup granulated sugar
- 1 teaspoon vanilla extract
Instructions
- Prepare the Chocolate Peanut Butter Mixture: Line a large baking sheet with parchment paper. In a medium saucepan over medium heat, combine corn syrup and sugar, stirring until the sugar dissolves and the mixture begins to bubble. Remove from heat and stir in peanut butter and vanilla extract until smooth.
- Add Chocolate Chips: Immediately add the chocolate chips and stir until fully melted and incorporated.
- Combine with Cornflakes: Gently fold in the cornflakes until evenly coated, being careful not to crush them too much.
- Form Cookies: Using a spoon or cookie scoop, drop mounds of the mixture onto the prepared baking sheet. Let cool at room temperature until firm, about 30 minutes.
Notes
- For a sweeter twist, drizzle white chocolate over the cookies once cooled.
- You can also add a pinch of sea salt on top for balance.
- Prep Time: 10 minutes
- Cook Time: 5 minutes
- Category: Dessert, Snack
- Method: No-bake
- Cuisine: American
Nutrition
- Serving Size: 1 cookie
- Calories: 140
- Sugar: 13g
- Sodium: 80mg
- Fat: 7g
- Saturated Fat: 3g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 18g
- Fiber: 1g
- Protein: 2g
- Cholesterol: 0mg