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Dessert / Best Monster Cookies Recipe – Easy Chewy Cookies

Best Monster Cookies Recipe – Easy Chewy Cookies

January 30, 2026 by ChloeDessert

Monster Cookies are more than just a sweet treat; they’re a nostalgic explosion of flavor and texture that instantly transports you back to childhood. These aren’t your average cookies. What makes Monster Cookies so utterly irresistible is their delightfully chaotic composition – a joyous mashup of textures and tastes all baked into one magnificent bite. Imagin extracte chewy oats, crisp chocolate chips, melt-in-your-mouth peanut butter, and the satisfying crunch of candy or M&Ms, all coming together in perfect harmony. They’re called Monster Cookies for a reason: their appearance is as wild and wonderful as their flavor profile. Every batch is unique, a delicious testament to the beauty of embracing a little bit of everything. If you’re looking for a cookie that’s guaranteed to bring smiles and satisfy even the most demanding sweet tooth, you’ve come to the right place.

Best Monster Cookies Recipe - Easy Chewy Cookies this Recipe

Ingredients:

  • ½ cup (113g) unsalted butter, softened to room temperature
  • 1 cup (200g) light brown sugar, firmly packed
  • ¼ cup (50g) granulated sugar
  • ⅓ cup (85g) smooth peanut butter, at room temperature
  • 1 large egg, plus 1 egg yolk, both at room temperature
  • 2 teaspoons pure vanilla extract
  • 2 teaspoons pure maple syrup
  • 1 cup (115g) old-fashioned rolled oats
  • 1¼ cups (155g) all-purpose flour, spooned and leveled
  • 1 teaspoon baking soda
  • ½ teaspoon baking powder
  • ½ teaspoon kosher salt
  • ¾ cup (130g) semi-sweet chocolate chips, plus extra for topping
  • ¾ cup (130g) M&M’s candies, plus extra for topping

Monster Cookie Dough Preparation

Creaming the Butter and Sugars

Start by creaming together your softened unsalted butter and both types of sugar. This is a crucial step for achieving the perfect cookie texture. In a large mixing bowl, combine the room-temperature butter, packed light brown sugar, and granulated sugar. Use an electric mixer (stand mixer or hand mixer) on medium speed to beat these ingredients together until they are light, fluffy, and pnon-alcoholic ale in color. This process incorporates air into the mixture, which contributes to the cookies’ lift and tender crum extractb. Don’t rush this step; it can take about 3 to 5 minutes of consistent mixing. Scrape down the sides of the bowl occasionally with a spatula to ensure everything is thoroughly incorporated.

Adding Wet Ingredients

Next, we’ll incorporate the wet ingredients to build the cookie dough base. Add the smooth peanut butter to the creamed butter and sugar mixture. Beat again until well combined. Now, it’s time for the eggs and vanilla. Add the large egg and the extra egg yolk to the bowl. Incorporating the extra yolk helps to make the cookies a little richer and chewier. Beat on medium speed until everything is just combined. Be careful not to overmix at this stage. Finally, drizzle in the pure maple syrup and the pure vanilla extract. Mix on low speed until just incorporated. The maple syrup adds a subtle depth of flavor that complements the other ingredients wonderfully.

Incorporating Dry Ingredients and Mix-ins

Combining Flour, Leavening, and Salt

In a separate medium bowl, whisk together the all-purpose flour, baking soda, baking powder, and kosher salt. Whisking these dry ingredients together before adding them to the wet ingredients helps to distribute the leavening agents evenly, preventing pockets of baking soda or powder and ensuring consistent cookie rise. Spoon the flour into your measuring cup and level it off with a straight edge for accuracy; this is important for the cookie’s structure.

Combining Wet and Dry Mixtures

Gradually add the dry ingredient mixture to the wet ingredient mixture in the large bowl. Mix on low speed until just combined. It’s important to stop mixing as soon as you no longer see streaks of dry flour. Overmixing the flour can develop the gluten too much, resulting in tough cookies. We want tender, chewy Monster Cookies, not hockey pucks!

Adding the Monster Elements

Now for the fun part – the mix-ins! Add the old-fashioned rolled oats, semi-sweet chocolate chips, and M&M candies to the cookie dough. Reserve a small handful of chocolate chips and M&M’s for pressing onto the tops of the cookies before baking, if you like that extra decorative touch. Gently fold in the oats, chocolate chips, and M&M’s using a sturdy spatula or wooden spoon. Mix just until they are evenly distributed throughout the dough. Be careful not to overmix when adding the mix-ins, as this can also lead to tougher cookies and can break up the M&M’s too much.

Baking the Monster Cookies

Chilling the Dough (Optional but Recommended)

For best results, especially if your dough seems a bit soft or if you want your cookies to spread less and hold their shape better, cover the bowl with plastic wrap and refrigerate for at least 30 minutes. This chilling time allows the fats to solidify and the flavors to meld. If you’re short on time, you can proceed to baking, but the cookies might spread more.

Baking and Cooling

Preheat your oven to 350°F (175°C). Line baking sheets with parchment paper or silicone baking mats. This prevents sticking and makes for easier cleanup. Drop rounded tablespoons of cookie dough onto the prepared baking sheets, leaving about 2 inches of space between each cookie to allow for spreading. If you reserved extra chocolate chips and M&M’s, gently press a few onto the tops of each cookie dough ball before baking.

Bake for 10-12 minutes, or until the edges are golden brown and the centers are still slightly soft. They will continue to cook and set as they cool on the baking sheet. For a chewier cookie, err on the side of underbaking slightly. Once baked, remove the baking sheets from the oven and let the cookies cool on the sheets for 5-10 minutes before transferring them to a wire rack to cool completely. This resting period on the hot baking sheet is essential for the cookies to firm up properly without becoming brittle. Enjoy your delicious, homemade Monster Cookies!

Best Monster Cookies Recipe - Easy Chewy Cookies

Conclusion:

And there you have it! You’ve mastered the art of creating these delightful Monster Cookies. We hope you enjoyed the process as much as you’ll enjoy the incredibly satisfying taste and texture of these chewy, chocolatey, and peanut buttery delights. These Monster Cookies are incredibly versatile, making them perfect for any occasion, from a casual afternoon treat to a show-stopping dessert at a birthday party. Serve them warm with a glass of milk for the ultimate comfort food experience, or let them cool completely for a delightfully crisp edge. Don’t be afraid to get creative with the mix-ins – feel free to add your favorite candies, nuts, or even a sprinkle of edible glitter for an extra touch of fun!

We encourage you to bake these Monster Cookies with loved ones and create lasting memories in the kitchen. Happy baking!

Frequently Asked Questions:

Can I make Monster Cookies gluten-free?

Absolutely! To make these Monster Cookies gluten-free, simply substitute the all-purpose flour with a good quality gluten-free all-purpose flour blend. Ensure your oats are also certified gluten-free. The texture might vary slightly, but they will still be incredibly delicious!

How should I store leftover Monster Cookies?

Store your cooled Monster Cookies in an airtight container at room temperature for up to 3-4 days. For longer storage, you can freeze them individually wrapped in plastic wrap and then placed in a freezer-safe bag or container for up to 3 months. Thaw them at room temperature before enjoying.


Best Monster Cookies Recipe - Easy Chewy Cookies

Best Monster Cookies Recipe – Easy Chewy Cookies

Delicious and easy chewy monster cookies packed with oats, chocolate chips, and M&M’s.

Prep Time
20 Minutes

Cook Time
12 Minutes

Total Time
42 Minutes

Servings
Approximately 24 cookies

Ingredients

  • ½ cup (113g) unsalted butter, softened to room temperature
  • 1 cup (200g) light brown sugar, firmly packed
  • ¼ cup (50g) granulated sugar
  • ⅓ cup (85g) smooth peanut butter, at room temperature
  • 1 large egg, plus 1 egg yolk, both at room temperature
  • 2 teaspoons pure vanilla extract
  • 2 teaspoons pure maple syrup
  • 1 cup (115g) old-fashioned rolled oats
  • 1¼ cups (155g) all-purpose flour, spooned and leveled
  • 1 teaspoon baking soda
  • ½ teaspoon baking powder
  • ½ teaspoon kosher salt
  • ¾ cup (130g) semi-sweet chocolate chips, plus extra for topping
  • ¾ cup (130g) M&M’s candies, plus extra for topping

Instructions

  1. Step 1
    Cream together softened unsalted butter, packed light brown sugar, and granulated sugar in a large mixing bowl with an electric mixer on medium speed until light, fluffy, and pale in color (about 3-5 minutes). Scrape down the sides of the bowl occasionally.
  2. Step 2
    Add smooth peanut butter and beat until well combined. Then, add the large egg, extra egg yolk, pure maple syrup, and pure vanilla extract. Beat on medium speed until just combined, being careful not to overmix.
  3. Step 3
    In a separate medium bowl, whisk together all-purpose flour, baking soda, baking powder, and kosher salt. Gradually add this dry mixture to the wet ingredients in the large bowl, mixing on low speed until just combined. Stop mixing as soon as no streaks of dry flour are visible.
  4. Step 4
    Gently fold in the old-fashioned rolled oats, semi-sweet chocolate chips, and M&M candies using a spatula or wooden spoon. Reserve a small handful of chocolate chips and M&M’s for topping. Mix just until evenly distributed.
  5. Step 5
    For best results, chill the dough in the refrigerator for at least 30 minutes. Preheat oven to 350°F (175°C). Line baking sheets with parchment paper or silicone baking mats.
  6. Step 6
    Drop rounded tablespoons of cookie dough onto prepared baking sheets, leaving about 2 inches between each cookie. Gently press reserved chocolate chips and M&M’s onto the tops of each cookie dough ball. Bake for 10-12 minutes, or until edges are golden brown and centers are still slightly soft. Cool on baking sheets for 5-10 minutes before transferring to a wire rack to cool completely.

Important Information

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.

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