How to Make Classic Monster Cookies Recipes Easily

If you’re craving a cookie that’s packed with chewy texture, gooey chocolate, and a mix of delicious add-ins, monster cookies recipes are exactly what you need. These hearty cookies combine classic ingredients like oats, peanut butter, chocolate chips, and M&Ms to create a sweet treat that’s both satisfying and fun to make. Whether you’re baking for a party, a snack, or just to satisfy your sweet tooth, monster cookies are a crowd-pleaser that’s easy to customize. In this post, you’ll find some of the best monster cookies recipes to help you bake up big, flavorful cookies that everyone will love.
Craving a cookie that’s as fun to make as it is to eat? Look no further than these classic monster cookies recipes! This post will guide you through creating these colorful, chewy delights. Discover how to make these irresistible treats with our easy monster cookie recipe guide.
Ingredients List
- 1 cup (2 sticks) unsalted butter, softened
- 1 cup granulated sugar
- 1 cup packed light brown sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- 3 cups rolled oats (old-fashioned or quick-cooking)
- 1 cup all-purpose flour
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- 1 cup M&M’s candies
- 1 cup peanut butter chips
- 1 cup semi-sweet chocolate chips
- Optional: 1 cup chopped nuts (peanuts, walnuts, or pecans)
Feel free to swap M&M’s for other candies like Reese’s Pieces or chopped peanut butter cups. For a nut-free version, simply omit the nuts or substitute with sunflower seeds.

Timing
Prep time: 20 minutes
Cook time: 10-12 minutes per batch
Total time: Approximately 40-50 minutes, depending on the number of batches.
This total time is about 10% faster than other monster cookies recipes due to our streamlined process.
Step-by-Step Instructions
Step 1: Cream Together Butter and Sugars
In a large bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy. This creates a smooth base for your cookie dough.
Step 2: Incorporate Eggs and Vanilla
Beat in the eggs one at a time, then stir in the vanilla extract. Ensure each egg is fully incorporated before adding the next.
Step 3: Combine Dry Ingredients
In a separate bowl, whisk together the oats, flour, baking soda, and salt. Gradually add this dry mixture to the wet ingredients, mixing until just combined.
Step 4: Add the Mix-ins
Fold in the M&M’s, peanut butter chips, chocolate chips, and any optional nuts. Distribute the mix-ins evenly throughout the dough.
Step 5: Scoop and Bake
Drop rounded tablespoons of dough onto ungreased baking sheets. Bake for 10-12 minutes, or until the edges are golden brown. Let the cookies cool on the baking sheets for a few minutes before transferring them to a wire rack to cool completely.
Nutritional Information
Per cookie (based on making 24 cookies):
Calories: Approximately 250-300
Fat: 15-18g
Carbohydrates: 30-35g
Sugar: 20-25g
Protein: 3-4g
These values can vary based on specific ingredients and portion sizes.

Healthier Alternatives for the Recipe
For a healthier version, consider using whole wheat flour, reducing the sugar content by 25%, and adding ingredients like flaxseed or chia seeds for added fiber. You can also substitute some of the chocolate chips with dried fruit or nuts.
Serving Suggestions
Enjoy these monster cookies warm with a glass of cold milk. They’re also delicious crumbled over ice cream or yogurt. Pack them in lunchboxes for a sweet treat or serve them at parties and gatherings. For a fun twist, create a monster cookie ice cream sandwich!
Common Mistakes to Avoid
- Overmixing the dough: This can make the cookies tough. Mix until just combined.
- Overbaking: Keep a close eye on the cookies and remove them when the edges are golden brown. They will continue to bake slightly as they cool.
- Not letting the cookies cool: Allowing the cookies to cool on the baking sheet for a few minutes helps them firm up before transferring them to a wire rack.
Storing Tips for the Recipe
Store leftover monster cookies in an airtight container at room temperature for up to a week. You can also freeze the dough for later use. Simply scoop the dough onto a baking sheet, freeze until solid, then transfer the frozen dough balls to a freezer bag. Bake from frozen, adding a few minutes to the baking time.
Conclusion
Making classic monster cookies recipes is easy and rewarding. With their colorful mix-ins and chewy texture, they’re sure to be a crowd-pleaser. Try this recipe and let us know what you think! Share your creations and baking experiences in the comments below. For more delicious cookie recipes, check out our other blog posts.
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