No bake peanut butter cornflake cookies with marshmallows are the perfect sweet treat that requires minimal effort and no oven time! These delightful cookies blend crunchy cornflakes with gooey marshmallows and creamy peanut butter, making them an ideal snack for any occasion. Whether it’s a cozy weeknight craving or a festive holiday gathering, these cookies are sure to impress everyone.

Why You’ll Love This No bake peanut butter Cornflake cookies with marshmallows
This recipe is not just easy; it’s a fun way to get everyone involved in the kitchen!
- Quick and Easy Preparation: This recipe requires no baking, making it super simple to whip up in no time.
- Kid-Friendly Fun: Kids can help mix and scoop, making this a great family activity.
- Versatile for Any Occasion: Perfect for holidays like Christmas, Thanksgiving, or just as an after-school snack.
- Deliciously Chewy Texture: The combination of marshmallows and peanut butter creates a delightful chewiness that you won’t be able to resist.
- Customizable Ingredients: Feel free to add chocolate chips or nuts for extra flavor!
Tools and Preparation
Gathering the right tools will make your cookie-making experience smooth and enjoyable.
Essential Tools and Equipment
- Large pot
- Mixing spoon
- Cookie scoop
- Parchment paper
- Ziplock bag
Importance of Each Tool
- Large pot: Essential for melting the butter and peanut butter together without burning.
- Cookie scoop: Helps create evenly sized cookie balls for uniform cooking and presentation.
- Parchment paper: Prevents sticking and makes cleanup a breeze.
Ingredients
For these delicious no bake peanut butter cornflake cookies with marshmallows, you’ll need the following ingredients:
For the Cookies
- 4 tablespoon salted butter
- ¾ cup smooth peanut butter
- 10 oz mini marshmallows
- ⅓ cup peanut butter chips (optional)
- 7 cups cornflakes
- 1 oz mini marshmallows (to mix in at the end)
For Drizzling
- 2 tablespoon peanut butter chips
- ½ teaspoon vegetable or canola oil

How to Make No bake peanut butter Cornflake cookies with marshmallows
Step 1: Melt the Butters and Marshmallows
- In a large pot over medium-low heat, melt the butter along with the peanut butter.
- Once melted, add in the 10 oz of mini marshmallows, stirring constantly until fully melted. Remove from heat.
Step 2: Mix in Cornflakes
- Stir in the cornflakes, ensuring each flake is fully coated.
- Gently fold in the remaining 1 oz mini marshmallows and optional peanut butter chips. Avoid overmixing to maintain texture.
Step 3: Form Cookie Balls
- Spray your cookie scooper with nonstick cooking spray.
- Scoop out 10 equally sized balls onto a parchment-lined baking sheet.
- Grease your fingers lightly and gently press each ball to about 1 inch in thickness without packing them too tightly.
Step 4: Add Peanut Butter Drizzle
- Melt the remaining peanut butter chips along with the oil in the microwave in 30-second increments, mixing in between until smooth.
- Pour this mixture into a ziplock bag, cut a small opening at one corner, and drizzle over each cookie.
Step 5: Set and Serve
- Allow the cookies to set for about 20-30 minutes before serving. Enjoy your delicious no bake peanut butter cornflake cookies with marshmallows!
How to Serve No bake peanut butter Cornflake cookies with marshmallows
These delightful no-bake peanut butter cornflake cookies with marshmallows are perfect for any occasion. You can serve them in various fun and creative ways to enhance your dessert experience.
For a Sweet Snack
- Serve them as is for a quick, satisfying treat that’s crunchy and chewy.
- Pair them with a glass of milk for a classic combo.
At a Party
- Arrange the cookies on a colorful platter to make an attractive dessert table.
- Add some festive sprinkles on top for extra flair.
As a Gift
- Package the cookies in cellophane bags tied with ribbon for a thoughtful homemade gift.
- Include a handwritten recipe card for a personal touch.
With Ice Cream
- Crumble the cookies over vanilla or chocolate ice cream for an indulgent sundae.
- Drizzle some chocolate sauce on top for additional sweetness.
During Holidays
- Serve these cookies at holiday gatherings as a festive treat everyone will love.
- Create themed cookie trays by adding other holiday-inspired desserts alongside them.
How to Perfect No bake peanut butter Cornflake cookies with marshmallows
To make your no-bake peanut butter cornflake cookies even better, consider these helpful tips.
- Melt Slowly: Always melt the peanut butter and marshmallows over low heat. This prevents hardening and ensures gooeyness.
- Don’t Overmix: Stir gently when combining the marshmallow mixture and cornflakes to keep the texture light and airy.
- Use Fresh Ingredients: Ensure all ingredients, especially marshmallows, are fresh for the best taste and texture.
- Customize Toppings: Feel free to add other toppings like chocolate chips or crushed nuts for added flavor and crunch.
- Storage Matters: Keep cookies in an airtight container at room temperature. This helps maintain their soft texture.
- Revive Them: If they become too firm, pop them in the microwave for a few seconds before serving to restore their gooeyness.

Best Side Dishes for No bake peanut butter Cornflake cookies with marshmallows
These no-bake peanut butter cornflake cookies pair well with many side dishes. Here are some suggestions that complement their sweet flavors.
- Fresh Fruit Salad: A mix of seasonal fruits adds freshness and balances the sweetness of the cookies.
- Chocolate Milkshake: This rich drink enhances the cookie experience, making it more indulgent.
- Yogurt Parfait: Layer yogurt with granola and berries for a refreshing side that contrasts nicely with the richness of the cookies.
- Cheese Platter: Offer soft cheeses like brie alongside savory crackers to balance out the sweetness.
- Nut Butter Dip: Serve with apple slices or pretzels paired with additional nut butter for dipping.
- Vanilla Ice Cream: Scoop this classic dessert next to your cookies for an irresistible combination.
Common Mistakes to Avoid
Making No bake peanut butter Cornflake cookies with marshmallows can be simple, but avoiding common mistakes will ensure your cookies turn out perfectly every time.
- Overheating the mixture: If you melt the butter and peanut butter too quickly, it can harden. Use low heat to keep the texture smooth.
- Not mixing properly: Ensure the cornflakes are fully coated with the peanut butter mixture. This prevents dry spots in your cookies.
- Packing the balls too tightly: If you compress the cookie balls, they may become dense. Gently shape them for a lighter texture.
- Skipping optional ingredients: Peanut butter chips add a delicious extra layer of flavor. Don’t omit them if you want a richer taste!
- Not letting them set long enough: Allow your cookies to sit for at least 20-30 minutes before serving to ensure they hold their shape.
Refrigerator Storage
- Store your cookies in an airtight container.
- They will stay fresh for up to 2 days in the refrigerator.
Freezing Instructions
- Place cookies in a single layer on a baking sheet and freeze until solid.
- Transfer to a freezer-safe container or bag, separating layers with parchment paper.
- They can be frozen for up to 3 months.
Reheating Instructions
- Oven: Preheat to 350°F (175°C). Bake for about 5-7 minutes until warm.
- Microwave: Heat one cookie at a time for about 5 seconds for that gooey texture.
- Stovetop: Place in a non-stick pan over low heat for 1-2 minutes, flipping halfway through.

Frequently Asked Questions
Why are my no bake peanut butter Cornflake cookies with marshmallows not gooey?
If your cookies are not gooey, it could be due to overheating the mixture. Make sure to melt it slowly so it doesn’t caramelize and harden.
How long will my no-bake cookies stay fresh for?
These cookies can last up to 2 days when stored in an airtight container at room temperature. Reheat briefly in the microwave for best results.
Can I customize my no bake peanut butter Cornflake cookies with marshmallows?
Yes! Feel free to add chocolate chips, nuts, or dried fruit for additional flavors and textures.
What if I don’t have cornflakes?
You can substitute cornflakes with crispy rice cereal or another crunchy cereal of your choice while maintaining similar textures.
Final Thoughts
These No bake peanut butter Cornflake cookies with marshmallows are not only easy to prepare but also versatile enough for any occasion. You can customize them by adding different mix-ins or drizzles according to your taste. Try making these delightful treats today!

No Bake Peanut Butter Cornflake Cookies with Marshmallows
- Total Time: 15 minutes
- Yield: Approximately 20 cookies 1x
Description
Indulge in the delightful world of no bake peanut butter cornflake cookies with marshmallows! This easy-to-make treat combines the crunchy texture of cornflakes with the creamy richness of peanut butter and the sweet chewiness of marshmallows. Perfect for busy weeknights or festive gatherings, these cookies require minimal effort and no oven time, making them a go-to choice for quick snacks or party desserts. With just a handful of ingredients and simple steps, you can whip up these delicious cookies that are sure to impress family and friends. Plus, they’re a fun activity for kids to help with in the kitchen!
Ingredients
- 4 tablespoons salted butter
- ¾ cup smooth peanut butter
- 10 oz mini marshmallows
- 7 cups cornflakes
- ⅓ cup peanut butter chips (optional)
- 1 oz mini marshmallows (to mix in at the end)
Instructions
- In a large pot over medium-low heat, melt the butter and peanut butter together. Once melted, add the mini marshmallows and stir until fully melted. Remove from heat.
- Stir in the cornflakes until fully coated. Gently fold in the extra mini marshmallows and optional peanut butter chips.
- Use a cookie scoop to form balls on parchment paper, pressing each ball gently to about 1 inch thick.
- Melt additional peanut butter chips with vegetable oil for drizzling over cookies.
- Allow cookies to set at room temperature for 20-30 minutes before serving.
- Prep Time: 15 minutes
- Cook Time: 0 minutes
- Category: Dessert
- Method: No Bake
- Cuisine: American
Nutrition
- Serving Size: 2 cookies (30g)
- Calories: 150
- Sugar: 11g
- Sodium: 75mg
- Fat: 7g
- Saturated Fat: 3g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 20g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 5mg
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