Homemade Monster Cookie Recipe photo

Monster Cookie Recipe

Monster cookies are the ultimate treat for anyone who loves a sweet combination of flavors and textures. Bursting with peanut butter, oats, chocolate, and colorful M&Ms, this cookie recipe is a crowd-pleaser that brings joy to any occasion. Whether you’re baking for a party, a family gathering, or just for yourself, monster cookies are sure to satisfy your sweet tooth and leave you wanting more.

Why It’s My Go-To

There’s something incredibly delightful about monster cookies that makes them my go-to recipe. They are not only easy to whip up but also incredibly adaptable. The combination of creamy peanut butter, chewy oats, and sweet chocolate creates a comforting flavor profile that feels indulgent yet homey. Plus, they can be made in one bowl, making cleanup a breeze. The versatility of this cookie allows you to customize it with your favorite mix-ins, ensuring that every batch can be a little different.

What You’ll Need

To make these scrumptious monster cookies, gather the following ingredients:

  • 1/2 cup butter (softened)
  • 3/4 cup light brown sugar (firmly packed, dark also works)
  • 1 tsp vanilla extract
  • 1 large egg
  • 3/4 cup creamy peanut butter
  • 1/2 cup all-purpose flour
  • 1/2 tsp baking soda
  • 1 tsp cornstarch
  • 1 cup rolled oats
  • 1/2 cup plain M&Ms
  • 1/2 cup semi-sweet chocolate chips

Setup & Equipment

Before you start baking, make sure you have the following equipment:

  • Mixing bowl – for combining all your ingredients.
  • Measuring cups and spoons – for accurate ingredient measurements.
  • Baking sheet – lined with parchment paper or a silicone mat.
  • Cookie scoop or tablespoon – for evenly portioning the dough.
  • Oven – preheated to 350°F (175°C).

Monster Cookie Recipe Cooking Guide

Easy Monster Cookie Recipe shot

Follow these simple steps to create your delicious monster cookies:

Step 1: Prepare the Oven

Preheat your oven to 350°F (175°C). This ensures that your cookies will bake evenly and come out perfectly golden brown.

Step 2: Cream the Butter and Sugars

In a large mixing bowl, combine the softened butter, light brown sugar, and vanilla extract. Use a hand mixer or a whisk to cream these ingredients together until the mixture is light and fluffy.

Step 3: Add the Egg and Peanut Butter

Next, add the large egg and creamy peanut butter to the mixture. Blend them in until completely incorporated, creating a smooth, creamy base.

Step 4: Mix the Dry Ingredients

In a separate bowl, whisk together the all-purpose flour, baking soda, cornstarch, and rolled oats. Once mixed, gradually add this dry mixture to your wet ingredients, stirring until just combined.

Step 5: Fold in the Mix-Ins

Gently fold in the plain M&Ms and semi-sweet chocolate chips. This is where the fun begins! Make sure the mix-ins are evenly distributed throughout the dough.

Step 6: Portion the Dough

Using a cookie scoop or tablespoon, drop rounded balls of dough onto your prepared baking sheet, spacing them about 2 inches apart to allow for spreading.

Step 7: Bake the Cookies

Place the baking sheet in the preheated oven and bake for 10-12 minutes, or until the edges are lightly golden. The centers may look slightly underbaked, but they will continue to set as they cool.

Step 8: Cool and Enjoy

Remove the cookies from the oven and let them cool on the baking sheet for about 5 minutes before transferring them to a wire rack to cool completely. Enjoy your freshly baked monster cookies with a glass of milk or your favorite beverage!

Vegan & Vegetarian Swaps

Delicious Monster Cookie Recipe recipe photo

If you’re looking to make vegan or vegetarian adaptations to this monster cookie recipe, consider the following swaps:

  • Butter: Use a plant-based butter or coconut oil instead.
  • Egg: Replace with a flax egg (1 tablespoon ground flaxseed mixed with 2.5 tablespoons water).
  • Chocolate Chips: Opt for dairy-free chocolate chips.

Cook’s Commentary

  • Feel free to customize the mix-ins! Try swapping out M&Ms for raisins, chopped nuts, or shredded coconut.
  • For a richer flavor, consider using dark brown sugar instead of light brown sugar.
  • If you prefer a chewier cookie, bake them for a shorter time and leave them a bit doughy in the center.

Make Ahead Like a Pro

You can prepare the monster cookie dough in advance and refrigerate it for up to 3 days. Just be sure to cover it tightly. When you’re ready to bake, scoop out the dough onto your baking sheet and add an extra minute to the baking time to account for the chilled dough.

Alternatively, you can freeze the cookie dough balls for up to 3 months. When you’re ready to bake, simply preheat the oven and add a couple of extra minutes to the baking time. Fresh cookies in no time!

Helpful Q&A

Can I use crunchy peanut butter instead of creamy?

Absolutely! Crunchy peanut butter will add an interesting texture to your monster cookies. Just keep in mind that the cookies may be a bit more crumbly.

How do I store leftover monster cookies?

Store your monster cookies in an airtight container at room temperature for up to one week. For longer storage, consider freezing them.

Can I substitute oats with another ingredient?

While oats provide a unique texture and taste, you can try using quick oats if you prefer a softer cookie. However, I do not recommend omitting them altogether as they are a key part of the monster cookie experience.

What’s the best way to enjoy monster cookies?

Monster cookies are delicious on their own, but they pair wonderfully with a glass of cold milk or a warm cup of coffee. Enjoy them fresh out of the oven or at room temperature!

Ready, Set, Cook

Now that you have all the details you need to create the perfect monster cookies, it’s time to gather your ingredients and start baking! Enjoy the process and don’t forget to share your delicious creations with family and friends. The joy of baking is in the love and care you put into each cookie, and these monster cookies are bound to be a hit! Happy baking!

Homemade Monster Cookie Recipe photo

Monster Cookie Recipe

These Monster Cookies are a delightful blend of peanut butter, oats, chocolate, and M&Ms—perfectly chewy and bursting with flavor!
Prep Time15 minutes
Cook Time12 minutes
Total Time27 minutes
Course: Dessert
Cuisine: American
Keyword: Chocolate, Cookies, Easy, Oats, Peanut Butter, Quick
Servings: 24 servings

Ingredients

  • 1/2 cup butter softened
  • 3/4 cup light brown sugar firmly packed, dark also works
  • 1 tsp vanilla extract
  • 1 large egg
  • 3/4 cup creamy peanut butter
  • 1/2 cup all-purpose flour
  • 1/2 tsp baking soda
  • 1 tsp cornstarch
  • 1 cup rolled oats
  • 1/2 cup plain M&Ms
  • 1/2 cup semi-sweet chocolate chips

Instructions

  • Preheat your oven to 350°F (175°C). This ensures that your cookies will bake evenly and come out perfectly golden brown.
  • In a large mixing bowl, combine the softened butter, light brown sugar, and vanilla extract. Use a hand mixer or a whisk to cream these ingredients together until the mixture is light and fluffy.
  • Next, add the large egg and creamy peanut butter to the mixture. Blend them in until completely incorporated, creating a smooth, creamy base.
  • In a separate bowl, whisk together the all-purpose flour, baking soda, cornstarch, and rolled oats. Once mixed, gradually add this dry mixture to your wet ingredients, stirring until just combined.
  • Gently fold in the plain M&Ms and semi-sweet chocolate chips. This is where the fun begins! Make sure the mix-ins are evenly distributed throughout the dough.
  • Using a cookie scoop or tablespoon, drop rounded balls of dough onto your prepared baking sheet, spacing them about 2 inches apart to allow for spreading.
  • Place the baking sheet in the preheated oven and bake for 10-12 minutes, or until the edges are lightly golden. The centers may look slightly underbaked, but they will continue to set as they cool.
  • Remove the cookies from the oven and let them cool on the baking sheet for about 5 minutes before transferring them to a wire rack to cool completely. Enjoy your freshly baked monster cookies with a glass of milk or your favorite beverage!

Equipment

  • Mixing Bowl
  • Measuring Cups and Spoons
  • Baking Sheet
  • Cookie scoop or tablespoon
  • Oven

Notes

  • Customize your mix-ins by swapping M&Ms for raisins, nuts, or shredded coconut for a different twist.
  • Use dark brown sugar for a richer, more robust flavor.
  • For chewier cookies, reduce baking time slightly and enjoy them a bit doughy in the center.
  • Prepare dough ahead of time and refrigerate up to 3 days or freeze dough balls for up to 3 months.

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