Nothing says Halloween like a big, colorful cookie stuffed with candy! This Crumbl Monster cookie recipe bakes up thick, soft, and chewy — each bite bursting with M&M’s, peanut butter chips, and chocolatey goodness. It’s quick to make, fun for kids, and perfect for using up leftover Halloween candy.
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Why You’ll Love This Crumbl Monster Cookie Recipe
You’ll love this Crumbl Monster cookie recipe because it’s the kind of cookie that makes everyone smile. The dough comes together fast with simple pantry ingredients, and there’s no chilling needed. The texture is just right — slightly crisp on the outside and soft, chewy inside. Each cookie is packed with M&M’s, peanut butter chips, and chocolate chips for the ultimate flavor mix.
It’s beginner-friendly, which means even if you don’t bake often, you’ll get perfect cookies every time. Plus, it’s a fun recipe to make with kids since they can help add all the colorful candies. You can also swap in any leftover Halloween treats you have lying around, making it both delicious and waste-free. Whether for parties, bake sales, or cozy fall nights, these cookies bring warmth and color to every tray.
Key Ingredients You’ll Need For Crumbl Monster cookie recipe
Butter and Sugars
Start with softened butter mixed with brown and white sugars. Creaming them together builds structure and gives that signature chewy Crumbl texture. The brown sugar adds moisture and caramel notes, while the white sugar balances sweetness and crispness.
Egg and Vanilla
The egg binds everything and helps the cookies stay soft and thick. Vanilla extract enhances the sweetness and aroma, rounding out the buttery, candy-studded flavor perfectly.
Dry Ingredients
All-purpose flour forms the cookie base, giving structure without making them cakey. Baking soda helps the dough spread just enough, while salt sharpens the sweet flavors and prevents them from tasting flat. Always sift these ingredients to avoid lumps and to keep your cookies tender.
Mix-Ins
The star of this Crumbl Monster cookie recipe is the trio of colorful M&M’s, peanut butter chips, and chocolate chips. Together, they make every bite sweet, salty, and fun. You can easily substitute chopped Reese’s, Twix, or any leftover Halloween candy for a creative twist. This mix of textures is what makes these cookies irresistible.
How to Make Crumbl Monster cookie recipe (Step-by-Step)
Prep and Preheat
Preheat your oven to 325°F. Line a baking sheet with parchment paper and set aside. Make sure your butter is softened before you begin, as this helps everything blend evenly.
Cream Butter and Sugars
In a large mixing bowl, cream butter with brown and granulated sugar until smooth and fluffy. This step traps air in the dough, giving the cookies their soft, thick structure.
Add Egg and Vanilla
Beat in the egg and vanilla until the mixture looks light and uniform. The dough should be smooth and creamy at this point.
Combine Dry Ingredients
In another bowl, sift together the flour, baking soda, and salt. Slowly add this mixture to your wet ingredients, stirring just until the flour disappears. Overmixing can make the cookies tough, so stop once combined.
Fold in Candy Mix
Gently fold in your M&M’s, peanut butter chips, and chocolate chips. Don’t stir too hard or the candies may crack. Save a few extras for topping later.
Scoop and Shape
Scoop the dough into 8 large portions and roll them into balls. Place each on your prepared baking sheet, spacing them apart. Flatten slightly to about 1 inch thick for even baking.
Bake and Decorate
Bake for 12–13 minutes, just until the edges look set and the centers are soft. As soon as they come out, press a few extra candies on top for that bakery-style finish.
Cool and Serve
Allow the cookies to cool on the sheet for 20 minutes. They’ll finish setting as they rest, turning perfectly chewy. Serve warm or at room temperature for the best flavor.
Expert Tips for Perfect Monster Cookies
Measure your flour carefully using the spoon-and-level method to avoid dense cookies. Always mix on low speed once you add dry ingredients to keep the texture tender. For that signature Crumbl thickness, stick with large scoops and avoid pressing them too thin.
If you want smaller cookies, divide the dough into 16 balls and bake for about 9–10 minutes. Also, if your cookies spread too much, chill the dough for 10 minutes before baking. For extra flavor, top them with a sprinkle of flaky sea salt right after baking — it highlights the sweetness beautifully.
Storage and Make-Ahead Tips
You can store your cookies in an airtight container at room temperature for up to 4 days. If you’d like them to last longer, refrigerate for up to a week. To reheat, pop them in the microwave for about 10 seconds to bring back that soft, gooey texture.
To freeze the dough, scoop portions onto a tray and freeze until solid. Then transfer to a freezer bag and store for up to 2 months. Bake directly from frozen, adding a minute or two to the time. You can also freeze baked cookies once cooled — they thaw beautifully overnight.
Recipe Notes and Variations
Unlike traditional monster cookies, this version skips the oats for a smoother, bakery-style texture. You can easily give it a Halloween twist by using spooky-colored M&M’s, candy eyeballs, or black and orange sprinkles.
For a nut-free version, replace peanut butter chips with butterscotch or white chocolate chips. Gluten-free bakers can swap the all-purpose flour for a 1:1 gluten-free blend. These cookies adapt easily for every sweet craving or holiday mood.
Other Recipes You May Enjoy
- Spiced Pumpkin Cookies perfect for Halloween
- The Best Cinnamon Rolls Ever for a spooky Halloween brunch
- Creamy Pumpkin Pasta as a Halloween dinner treat
- Gluten-Free Pumpkin Muffins for your Halloween party spread
Conclusion
These Crumbl Monster Cookies are the ultimate Halloween treat — soft, chewy, and filled with candy in every bite. They come together fast, need no chilling, and always disappear from the cookie tray first. Whether you’re baking with your kids or making a batch for a party, they’ll bring color and sweetness to every celebration.
For more fun baking inspiration and decorating ideas, follow along on Pinterest
Crumbl Monster Cookie Recipe
Equipment
- Mixing bowls One for wet and one for dry ingredients
- Hand mixer or stand mixer For creaming butter and sugars
- Baking sheet Line with parchment paper
- Measuring cups and spoons Accurate measurements ensure best texture
- Cooling rack Let cookies rest and cool evenly
Ingredients
- ½ cup softened butter (salted or unsalted)
- ⅓ cup packed light brown sugar
- 3 tablespoons granulated sugar
- 1 egg
- 2 teaspoons vanilla extract
- 1 ½ cups all-purpose flour
- ½ teaspoon baking soda
- ⅓ teaspoon salt
- ¼ cup M&M’s
- ¼ cup peanut butter chips
- 3 tablespoons semi-sweet chocolate chips
Instructions
- Preheat oven to 325°F and line a baking sheet with parchment paper.
- Cream butter, brown sugar, and granulated sugar until smooth and fluffy.
- Mix in egg and vanilla extract until fully combined.
- Sift in flour, baking soda, and salt. Stir until no dry flour remains.
- Fold in M&M’s, peanut butter chips, and chocolate chips.
- Scoop dough into 8 equal portions, flatten slightly to about 1 inch thick.
- Bake 12–13 minutes until edges are set. Top with extra candies immediately after baking.
- Cool on baking sheet for 20 minutes before serving.
