If you are searching for a nostalgic and delightfully crunchy treat, this Peanut Butter Cornflake Cookies Recipe is an absolute must-try. These no-bake cookies combine the rich creaminess of peanut butter, the sweetness of sugar and corn syrup, and the satisfying crunch of cornflakes to create a perfect balance of flavor and texture. Whether you need a quick dessert or a fun snack to share, these cookies offer a simple yet delicious way to satisfy your sweet tooth with minimal effort and fuss.

Ingredients You’ll Need
The beauty of this Peanut Butter Cornflake Cookies Recipe lies in its simple, everyday ingredients. Each component plays a key role: the sugar and corn syrup bring the perfect sweetness and chewy consistency, the peanut butter adds creamy richness and depth, the vanilla extract contributes a warm aroma, and the cornflakes provide that essential crispy texture that makes these cookies unforgettable.
- 1 cup granulated sugar: Adds sweetness and helps to create the sticky, chewy base of the cookie.
- 1 cup light corn syrup: Works with the sugar to bind the cookies and give them a glossy finish.
- 1 cup creamy peanut butter: The star ingredient providing rich flavor and smooth texture.
- 1 teaspoon vanilla extract: Enhances the overall taste with a warm, fragrant note.
- 6 cups cornflake cereal: Offers the signature crunch and lightness that make these cookies so enjoyable.
How to Make Peanut Butter Cornflake Cookies Recipe
Step 1: Prepare the Sweet Base
Start by combining the granulated sugar and light corn syrup in a large saucepan over medium heat. Stir constantly as the sugar dissolves and the mixture gently comes to a boil. Once boiling, promptly take the pan off the heat to avoid burning. This step creates the foundation of your cookie’s chewy texture and sweet flavor.
Step 2: Incorporate Peanut Butter and Vanilla
While the syrup mixture is still warm, stir in the creamy peanut butter and vanilla extract. Mix vigorously until the mixture becomes smooth and uniform. This is where the comforting peanut butter flavor fully blossoms, perfectly balanced by the warm hint of vanilla.
Step 3: Fold in the Cornflakes
Gently fold the cornflake cereal into the peanut butter mixture, making sure each flake is well coated without breaking them up too much. This step provides that satisfying crunch everyone loves, so handle the flakes with care to maintain their delicate texture.
Step 4: Shape and Cool the Cookies
Working quickly, use a spoon to drop heaping spoonfuls of the mixture onto a baking sheet lined with parchment paper. Since the mixture sets fast, having your baking sheet ready is essential. Allow the cookies to cool at room temperature for about 30 minutes until they are fully set and firm enough to enjoy.
How to Serve Peanut Butter Cornflake Cookies Recipe

Garnishes
These cookies are perfectly delicious on their own, but adding a drizzle of melted chocolate or sprinkling mini chocolate chips on top just after mixing can elevate their appearance and add a chocolatey punch. A light dusting of powdered sugar or a pinch of sea salt can also create a beautiful contrast of textures and flavors.
Side Dishes
Peanut Butter Cornflake Cookies pair wonderfully with a cold glass of milk or a cup of hot tea or coffee. For an extra indulgent treat, serve alongside creamy vanilla ice cream or fresh fruit like sliced bananas or strawberries to balance the sweetness.
Creative Ways to Present
Serve these cookies on a rustic wooden board for a cozy feel or arrange them in colorful cupcake liners for a playful presentation at parties. You can even sandwich two cookies together with a dollop of marshmallow fluff or chocolate spread to create a unique dessert experience.
Make Ahead and Storage
Storing Leftovers
Store any leftover Peanut Butter Cornflake Cookies in an airtight container at room temperature to maintain their crunch and freshness. They should stay perfectly delicious for up to a week, making them a convenient grab-and-go snack for busy days.
Freezing
If you want to keep these cookies longer, freezing is a great option. Place them in a single layer on a baking sheet to freeze first, then transfer to a freezer-safe bag or container. They can be frozen for up to 2 months without losing their flavor or texture.
Reheating
Since these cookies are no-bake and meant to be served at room temperature, reheating is not necessary. However, if you prefer them slightly warm, allow them to thaw naturally, and enjoy the delightful soft warmth paired with crunchy cornflakes.
FAQs
Can I substitute crunchy peanut butter for creamy?
Yes, using crunchy peanut butter will add extra texture to the cookies, complementing the cornflakes even more. Just keep in mind this will change the cookie’s overall mouthfeel slightly.
Are these cookies gluten-free?
They can be, as long as you use a certified gluten-free cornflake cereal. Always check labels to be sure they meet your dietary needs.
Can I add other mix-ins to the Peanut Butter Cornflake Cookies Recipe?
Absolutely! Mini chocolate chips, raisins, or even chopped nuts can be folded in for more variety and flavor dimensions.
How do I prevent the cookies from sticking to the baking sheet?
Using parchment paper is key here — it creates a non-stick surface so the cookies will release easily once cooled.
Can I make these cookies vegan?
To make these vegan, use a plant-based peanut butter and substitute corn syrup with a vegan sweetener like maple syrup, though the texture and set time might vary slightly.
Final Thoughts
I truly hope you give this Peanut Butter Cornflake Cookies Recipe a try because it’s one of those simple pleasures that feels like a warm hug wrapped up in a crunchy, sweet bite. Whether you’re making a quick snack for yourself or a nostalgic treat for loved ones, these cookies never fail to bring smiles and happy memories. Enjoy every moment of making and sharing them!
Print
Peanut Butter Cornflake Cookies Recipe
- Prep Time: 10 minutes
- Cook Time: 5 minutes
- Total Time: 15 minutes (plus 30 minutes cooling)
- Yield: 24 cookies
- Category: Dessert
- Method: Stovetop
- Cuisine: American
- Diet: Gluten Free
Description
Peanut Butter Cornflake Cookies are a delightful no-bake treat combining the creamy richness of peanut butter with the crunchy texture of cornflakes. Sweetened with sugar and light corn syrup and flavored with vanilla, these easy and quick cookies are perfect for a simple dessert or snack that requires minimal ingredients and effort.
Ingredients
Dry Ingredients
- 1 cup granulated sugar
- 6 cups cornflake cereal
Wet Ingredients
- 1 cup light corn syrup
- 1 cup creamy peanut butter
- 1 teaspoon vanilla extract
Instructions
- Heat Sugar and Corn Syrup: In a large saucepan over medium heat, combine the granulated sugar and light corn syrup. Stir constantly until the mixture reaches a gentle boil, ensuring the sugar dissolves completely and the mixture is smooth.
- Add Peanut Butter and Vanilla: Remove the saucepan from heat immediately and stir in the creamy peanut butter and vanilla extract until the mixture becomes smooth and fully incorporated.
- Mix in Cornflakes: Gently fold the cornflake cereal into the peanut butter mixture, coating the flakes evenly without crushing them, which keeps the cookies crunchy.
- Shape Cookies: Working quickly to prevent the mixture from setting, drop heaping spoonfuls of the mixture onto a parchment-lined baking sheet, forming individual cookies.
- Cool and Set: Allow the cookies to cool at room temperature for about 30 minutes until they harden and set properly before serving.
Notes
- For a chocolatey twist, drizzle melted chocolate over the cookies or mix in mini chocolate chips after the peanut butter mixture is ready.
- These cookies set quickly, so ensure your baking sheet is prepared in advance.
- Store cookies in an airtight container to maintain freshness and crunch.

