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Home » Recipes » Cookies Recipes

Monster Cookies

Published: Jul 19, 2024 by Marye

Crispy, chewy, oatmeal based cookies with a variety of types of chocolates added. These are a lunch box favorite - and with good reason! The yield varies on how big you make them.
Total time for the recipe to be finished.Total Time 17 minutes minutes
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Close up of Monster Cookies for the featured image.
Collage of monster cookies for Pinterest with title text overlay.

Hey y'all! monster cookies are packed with everything you love: peanut butter, oats, chocolate chips, and M&M's.

Perfect for kids' parties, bake sales, or just because, these cookies are gonna be a family favorite served with a tall glass of cold milk.

Closeup of monster cookies on a plate.
Table of Contents
  • I think I have a new favorite cookie recipe!!!
  • 🗝️ Key takeaways: why this recipe is your new favorite
  • 🧾 Gather your ingredients: what you'll need
  • 📖 Make it your own: yummy variations
  • 🍴Must have tools: essential equipment
  • 🥫 Leftover love: how to store and reheat
  • Marye's Tip o' the day
  • 💭 Insider tips: things to know
  • 👩‍🍳 Let's answer those questions: FAQs
  • 📚 More Southern comfort: related recipes you'll love
  • 🍽️ No waste: creative ways to repurpose
  • 📞 Wrapping it up: the last word
  • 📖 Recipe
  • ✍🏻 A note from Marye...
  • 💬 Comments

Save this recipe by clicking on the ❤️ heart on the right-hand side of the screen or in the recipe card.

I think I have a new favorite cookie recipe!!!

5 star rating
5 star rating
5 star rating
5 star rating
5 star rating
These are the best cookies ever!!! I think I have a new favorite cookie recipe!!! Thanks!
Diane

🗝️ Key takeaways: why this recipe is your new favorite

  • These cookies combine all your favorite flavors in one delightful bite. The blend of peanut butter, oats, chocolate chips, and M&M's creates a chewy, satisfying treat that everyone will adore.
  • Monster cookies are geat for after-school snacks and bake sales. They definitely have a place on the Christmas baking list around here, too.
  • For bake sales I like to use a big cookie scoop so the cookies are HUGE. They sell really well and the kids love 'em.

Be careful not to overcook these; when you take them out of the oven they should be slightly underbaked in the center.

Allow them to cool at least five minutes to firm up and become the amazing cookies they are destined to be. I based the recipe on my favorite oatmeal cookie recipe, the original from Quaker Oats.

I know you will want to have these on hand for snacks but also as an addition to any Christmas cookie tray you might do.

Oh...and don't forget the milk!

🧾 Gather your ingredients: what you'll need

This is an overview of the ingredients. You'll find the full measurements and instructions in the green recipe card (printable) at the bottom of the page.

Labeled ingredients for monster cookies recipe.

📖 Make it your own: yummy variations

  1. chocolate overload: Add dark chocolate chunks for an extra chocolatey twist.
  2. nutty delight: Mix in some chopped nuts like pecans or walnuts for added crunch.
  3. fruity fun: Dried cranberries or raisins make a tasty addition.

🤫 Marye's secret for zhuzhing it up -

Add a sprinkle of flaked sea salt on top before baking for an extra layer of flavor that’ll make these cookies truly unforgettable.

zhuzh: verb. To make something more interesting or attractive

🍴Must have tools: essential equipment

  • large mixing bowls
  • electric mixer
  • measuring cups and spoons
  • cookie scoop or tablespoon
  • baking sheet
  • parchment paper or silicone baking mat

🥫 Leftover love: how to store and reheat

Store leftover cookies in an airtight container at room temperature for up to a week. These cookies also freeze well for 3 or 4 months.

Marye's Tip o' the day

To keep cookies extra fresh, place a slice of bread in the storage container – it’ll keep your cookies soft and chewy.

💭 Insider tips: things to know

  1. Don't overbake: keep an eye on the cookies and take them out when the edges are lightly golden but the centers are still soft. They'll continue to cook a bit as they cool on the baking sheet.
  2. Room temperature ingredients: make sure your butter is softened and your eggs are at room temperature for the best mixing results.
  3. Fold don't mix: fold in the candy and chocolate chips rather than using the mixer so you don't overwork the dough and make it tough.

👩‍🍳 Let's answer those questions: FAQs

Have other questions? Ask me in the comments!

Can I freeze the dough?

Sure thing! Scoop the dough into balls and freeze on a baking sheet. Once frozen, transfer to a freezer bag. Bake from frozen, adding an extra 1-2 minutes to the baking time.

What can I use instead of M&M's?

 Feel free to swap them out for more Reese's Pieces, chopped candy bars, or your favorite chocolate candies.

Monster cookies and a glass of milk.

⏲️ Marye's time saving hacks -

xxxxx

Pre-Scoop Your Dough: If you’re short on time, pre-scoop your cookie dough and refrigerate it. This way, you can pop them in the oven whenever you need a fresh batch.

📚 More Southern comfort: related recipes you'll love

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🍽️ No waste: creative ways to repurpose

Crumbled cookie parfait: Crumble leftover cookies over vanilla ice cream or layer them with whipped cream and fruit for a delicious parfait.

📞 Wrapping it up: the last word

My monster cookies are crispy on the outside, tender and chewy on the inside, and full of 3 kinds of chocolate chips, M&Ms, Reeses Pieces, and peanut butter. Every bite is a flavor explosion.

If you click on the number of servings in the recipe card you can adjust the measurements up or down for the exact number of servings you need.

If you love this recipe please comment below and give it 5 stars! ⭐️⭐️⭐️⭐️⭐️

📖 Recipe

Close up of Monster Cookies for the featured image.

Monster Cookies Recipe

5 from 5 votes
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Crispy, chewy, oatmeal based cookies with a variety of types of chocolates added. These are a lunch box favorite - and with good reason! The yield varies on how big you make them.
Course cookies
Cuisine American - Vintage
Prep Time: 5 minutes minutes
Cook Time: 12 minutes minutes
Total Time: 17 minutes minutes
Servings:48
Calories:195
Author:Marye Audet-White

Ingredients

  • 1 cup unsalted butter, , cut in small squares
  • 1 cup peanut butter
  • 1 cup firmly packed brown sugar
  • ¾ cup granulated sugar
  • 2 eggs
  • 1 teaspoon vanilla
  • 1-½ cups all-purpose flour
  • 2 teaspoon baking soda
  • 1 teaspoon kosher salt
  • 3 cups Quaker oatmeal, (not instant)
  • 1 cup M & Ms
  • 1 cup Reeses Pieces
  • ½ cup semi sweet chocolate chips
  • ½ cup Ghirardelli bittersweet chocolate chips, (or whatever you like – these are my favorite)
  • ½ cup Ghirardelli white chocolate chips
  • Colored sugar for sprinkling if desired

Instructions

  • Cream together butter and peanut butter until well mixed.
  • Add sugars.
  • Cream until fluffy.
  • Add eggs, one at a time.
  • Stir in vanilla.
  • Mix the flour, salt, and baking soda; add to butter mixture.
  • Stir in the oatmeal until well mixed.
  • Stir in the chocolate and peanut butter pieces. Don't over stir because it will cause cookies to be tough.
  • Drop by teaspoon, tablespoon, or 2 tablespoon measure onto cookie sheet lined with silpat or parchment.
  • Bake at 350F for 12 minutes or until set and starting to turn golden brown. Cookies will still be soft.
  • Cool in pan for at least 5 minutes.

Notes

The nutritional information on these is a close estimate, based on a yield of 4 dozen cookies.
You'll find more helpful tips and variations in the body of the post.

Nutrition Facts

Calories: 195kcal | Carbohydrates: 22g | Protein: 3g | Fat: 11g | Saturated Fat: 6g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 0.2g | Cholesterol: 18mg | Sodium: 131mg | Potassium: 105mg | Fiber: 1g | Sugar: 15g | Vitamin A: 140IU | Vitamin C: 0.1mg | Calcium: 34mg | Iron: 1mg

Nutrition information is estimated as a courtesy. If using for medical purposes, please verify information using your own nutritional calculator. Percent Daily Values are based on a 2000 calorie diet.

This recipe has been tested several times. If you choose to use other ingredients, or change the technique in some way, the results may not be the same.

First published November 8, 2010. Last updated July 19, 2024 for readability and editorial content improvements.

✍🏻 A note from Marye...

I know y'all don't always like the stories bloggers tell so when I have one I try to put it at the very bottom so you can read or skip as you like.

November 2010

I had been kicking around a recipe for monster cookies for several months. It is how it works with me...flavors and ideas sort of float around in my brain like one-celled creatures in primordial ooze, and then once in a while, they will hit up against each other, and ...KABOOM...a new recipe is born.

In this case, it was hastened by a reader that asked if I had a recipe for Monster cookies.

Monster cookies usually are some form of oatmeal, peanut butter, and chocolate chip cookies...and they are made with a bigger scoop. You can make these however big you want. I used about 1 ½ tablespoons for these because I want to send some cookies to my son who is currently in Iraq playing with F-16s.

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About Marye

Meet Marye Audet, a wizard in the kitchen and a storyteller at heart. Marye is like your eccentric but fun aunt who knows all the secret recipes and isn't afraid to spill them.

Comments

    5 from 5 votes (1 rating without comment)

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    Love it? Give it 5 stars!




  1. Tammy says

    November 02, 2022 at 10:29 am

    5 stars
    Monster Cookies are my favorite! So rich, perfect blend of crisp edges & chewy middle, chocolate chips and M&M’s…HEAVEN! So glad you put this recipe in this blog post.

    Reply
  2. Healing Tomato says

    April 28, 2015 at 11:08 pm

    5 stars
    Any cookie that has M & Ms in it is my kind of cookie. Love all the ingredients in this monster cookie recipe.

    Reply
  3. Olivia @ livforcake says

    April 28, 2015 at 10:40 am

    5 stars
    These look amazing! I love how puffy they are. Pinning for later!

    Reply
  4. allie @ Through Her Looking Glass says

    April 28, 2015 at 9:47 am

    5 stars
    These look wonderful Marye, perfect for summer with a glass of milk or lemonade! So many great add-ins!

    Reply
  5. Denise says

    April 30, 2011 at 8:48 pm

    LOVED these cookies! Wouldn't change a thing.
    Thanks for a great recipe.
    Denise

    Reply
  6. Becky says

    April 28, 2011 at 4:53 pm

    I've not heard of Monster cookies before. From looking at the recipe looks yummy and full if everything we like, chocolate, oatmeal and peanut butter. Will try to bake these this weekend!

    Reply
    • marye says

      April 28, 2011 at 4:59 pm

      My kids love these. Don't forget the milk tho!

      Reply
  7. Diane says

    November 20, 2010 at 8:58 pm

    These are the best cookies ever!!! I think I have a knew favorite cookie recipe!!! Thanks!

    Reply
  8. Diane says

    November 19, 2010 at 9:58 am

    Oh, I am so totally making these for my hubby. They are his favorite and I bet this will be 100 times better than the fundraiser stuff you get in the bucket! Thank you so much!

    Reply
    • maryeaudet says

      November 19, 2010 at 11:01 am

      I really liked them and I sent them to my son in Iraq and they held up beautifully,

      Reply
Marye Audet-White, founder of Restless Chipotle Media

Hey Y'all, I'm Marye

Welcome to my kitchen! ☕

NY Times bestselling author. 10 cookbooks. Mom of 8 kids. Homeschooling mom for 22 years. Addicted to Hallmark Christmas Movies. Collector of old cookbooks.

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