Crumbl No-Bake Marshmallow Peanut Butter Cornflake Cookies: A Sweet and Crunchy Treat
If you’re a fan of easy, no-bake desserts that deliver both flavor and texture, these Crumbl No-Bake Marshmallow Peanut Butter Cornflake Cookies are perfect for you! With creamy peanut butter, gooey marshmallows, and the irresistible crunch of cornflakes, these cookies are a delightful treat for any occasion. The best part? You don’t even need to turn on your oven! This quick and simple recipe will have you enjoying sweet, chewy, and crunchy cookies in just 40 minutes.
Why You’ll Love This Recipe
These no-bake cookies combine all the best elements of a classic treat—rich peanut butter, fluffy marshmallows, and crispy cornflakes—into one amazing bite. Whether you’re making them as a fun snack for kids, a quick dessert for a gathering, or just indulging your sweet tooth, they come together in no time with minimal effort. Plus, the optional drizzle of melted peanut butter chips on top adds an extra layer of flavor and decadence!
Ingredients
For the Cookies:
- 4 tbsp 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 the Peanut Butter Drizzle:
- 2 tbsp peanut butter chips
- ½ tsp vegetable or canola oil
Instructions
Step 1: Melt the Butter, Peanut Butter, and Marshmallows
In a large pot over medium-low heat, melt the butter and peanut butter together, stirring occasionally to combine. Once the mixture is smooth, add in 10 oz of mini marshmallows, stirring constantly until the marshmallows are completely melted and incorporated. Remove the pot from the heat.
Step 2: Mix in the Cornflakes and Optional Add-ins
Gently fold in 7 cups of cornflakes, making sure they are fully coated with the melted peanut butter and marshmallow mixture. Stir carefully to avoid breaking the cornflakes. If you’re using the optional ⅓ cup of peanut butter chips and the remaining 1 oz of mini marshmallows, fold them in at this point. Be gentle as you mix so the marshmallows and chips don’t melt completely.
Step 3: Shape the Cookies
Prepare a parchment-lined baking sheet and lightly spray a large cookie scooper with nonstick spray. Use the scooper to scoop out 10 equally sized balls of the peanut butter cornflake mixture and place them onto the baking sheet. Grease your fingers and gently press each ball down to about 1 inch in thickness, being careful not to pack the cookies too tightly to maintain their light, airy texture.
Step 4: Make the Peanut Butter Drizzle
In a small microwave-safe bowl, combine 2 tbsp of peanut butter chips and ½ tsp of vegetable or canola oil. Microwave the mixture in 30-second increments, stirring in between, until smooth and melted.
Transfer the melted peanut butter mixture to a ziplock bag and cut a small opening at the tip. Drizzle the peanut butter over each cookie for a decorative and delicious finish.
Step 5: Let the Cookies Set
Allow the cookies to set at room temperature for about 20-30 minutes, or until they are firm enough to handle. Once set, they’re ready to enjoy!
Serving Suggestions
These Crumbl No-Bake Marshmallow Peanut Butter Cornflake Cookies are best enjoyed as a snack or dessert. They pair wonderfully with a cold glass of milk, and their light, sweet crunch makes them a hit at parties or as a fun treat for kids. You can even get creative with additional toppings like a sprinkle of sea salt, chocolate chips, or chopped nuts for an added twist.
Recipe Notes
- Storage: Store the cookies in an airtight container at room temperature for up to 5 days. They also freeze well, making them a great option for make-ahead treats.
- Optional Add-ins: If you love a bit of extra sweetness, consider adding chocolate chips, toffee bits, or even crushed pretzels to the mixture for added flavor and texture.
- Customize: You can switch out the peanut butter for almond butter or sunflower seed butter if you’re looking for an alternative to traditional peanut butter.
Recipe Summary
- Prep Time: 10 minutes
- Setting Time: 30 minutes
- Total Time: 40 minutes
- Servings: 10 cookies
- Calories: 280 kcal per cookie
Final Thoughts
These Crumbl No-Bake Marshmallow Peanut Butter Cornflake Cookies are a fantastic treat when you’re craving something sweet and satisfying without spending too much time in the kitchen. With their soft, chewy texture and crunchy cornflake base, they offer the perfect balance of flavors in every bite. Whether you make them for yourself or share them with friends and family, they’re sure to be a hit. Enjoy!
Print
Crumbl No-Bake Marshmallow Peanut Butter Cornflake Cookies
- Total Time: 40 minutes
- Yield: 10 1x
Description
These Crumbl-inspired No-Bake Marshmallow Peanut Butter Cornflake Cookies are the perfect balance of chewy, crunchy, and sweet! Made with smooth peanut butter, mini marshmallows, and crunchy cornflakes, these cookies are easy to whip up without the need for an oven. The final touch is a drizzle of melted peanut butter chips, adding an extra layer of deliciousness.
Ingredients
4 tbsp 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)
2 tbsp peanut butter chips (for drizzling)
½ tsp vegetable or canola oïl
Instructions
In a large pot over medium-low heat, melt the butter and peanut butter together. Stir in 10 oz of mini marshmallows, constantly stirring until completely melted and smooth. Remove from heat.
Gently fold the cornflakes into the melted mixture, ensuring they are fully coated. Add the remaining 1 oz of mini marshmallows and the optional ⅓ cup peanut butter chips. Stir gently to combine, taking care not to overmix.
Spray a large cookie scooper with nonstick spray and scoop out 10 equally sized peanut butter cornflake balls onto a parchment-lined baking sheet. Grease your fingers and gently press each cookie to about 1 inch in thickness without packing them too tightly.
Melt 2 tbsp peanut butter chips with ½ tsp oil in the microwave, heating in 30-second increments and stirring between each interval until smooth. Transfer the melted peanut butter mixture to a ziplock bag, cut a small opening at the tip, and drizzle over each cookie.
Allow the cookies to set for 20-30 minutes before serving.
- Prep Time: 10 minutes
Nutrition
- Calories: 280