Monster Cookies

This Monster Cookies recipe combines peanut butter, oats, chocolate chips and M&M’s for a giant, chewy cookie that will become a family favorite. Use different colored M&M’s to make these giant monster cookies for any holiday or occasion!

This Monster Cookies recipe combines peanut butter, oats, chocolate chips and M&M's for a giant, chewy cookie that will become a family favorite. Use different colored M&M's to make these giant monster cookies for any holiday or occasion!

The first time I ate a monster cookie was the summer of 1979. I was a kid and it was the dog days of summer. Since it was an extremely hot Texas summer afternoon, me and some neighborhood friends wanted to do something inside for a while, so we decided to make cookies.

It was my neighbor’s recipe, and I didn’t know what a monster cookie was, so I was excited to make them.

We started putting the ingredients together in a large mixing bowl, you know, all the normal stuff for cookies, flour, sugar, eggs, and butter.

This Monster Cookies recipe combines peanut butter, oats, chocolate chips and M&M's for a giant, chewy cookie that will become a family favorite. Use different colored M&M's to make these giant monster cookies for any holiday or occasion!

When we added the peanut butter, I knew then it was going to be a version of a peanut butter cookie.

Then we added seven cups of uncooked oats, which almost sounded healthy. But the last two ingredients were semi-sweet chocolate chips and M&M’s chocolate candies. I knew then, this was going to be the best cookie ever!  After tasting these, I think you will agree too!

How to Make Monster Cookies

This is an easy monster cookie recipe, with no need to chill the cookie dough.

Mix all the ingredients in a large mixing bowl, following the instructions in the recipe card below.

Make large dough balls and pat them out into rounds that are about 3 1/2 inches in diameter and 1/2 inch tall.

Place them on a cookie sheet with space around them to grow. You should only put 6 per cookie sheet. For the 60 minute cook time, you will need to cook 2 cookie sheets at a time and have 2 more cookie sheets to be ready to go with the next set.

This Monster Cookies recipe combines peanut butter, oats, chocolate chips and M&M's for a giant, chewy cookie that will become a family favorite. Use different colored M&M's to make these giant monster cookies for any holiday or occasion!

Add a few of the saved M&M’s to the top of the cookies to make them pretty.

This Monster Cookies recipe combines peanut butter, oats, chocolate chips and M&M's for a giant, chewy cookie that will become a family favorite. Use different colored M&M's to make these giant monster cookies for any holiday or occasion!

Bake for 10-12 minutes until they turn golden brown around the edges. Make sure that you do not over bake them.

This Monster Cookies recipe combines peanut butter, oats, chocolate chips and M&M's for a giant, chewy cookie that will become a family favorite. Use different colored M&M's to make these giant monster cookies for any holiday or occasion!

Let the cookies cool for 5 minutes on the cookie sheets.

Transfer to wire racks and allow them to cool completely before storing in an airtight container with wax paper between the layers of cookies to keep them from sticking together.

You can use different colored M&M’s for any occasion, like holidays, graduations, etc. Here are a few ideas.

Spring Monster Cookies

This Monster Cookies recipe combines peanut butter, oats, chocolate chips and M&M's for a giant, chewy cookie that will become a family favorite. Use different colored M&M's to make these giant monster cookies for any holiday or occasion!

Halloween Monster Cookies

This Monster Cookies recipe combines peanut butter, oats, chocolate chips and M&M's for a giant, chewy cookie that will become a family favorite. Use different colored M&M's to make these giant monster cookies for any holiday or occasion!

Christmas Monster Cookies

Looking for Monster Cookie Recipes? Try this delicious, easy one! This Monster Cookies recipe combines peanut butter, oats, chocolate chips and M&M's for a giant, chewy cookie that will become a family favorite. Use different colored M&M's to make these giant monster cookies for any holiday or occasion!

For those in the U.S.A., how about Independence Day or Fourth of July Monster Cookies!

Looking for Monster Cookies Recipes? Here is a great one! This Monster Cookies recipe combines peanut butter, oats, chocolate chips and M&M's for a giant, chewy cookie that will become a family favorite. Use different colored M&M's to make these giant monster cookies for any holiday or occasion!

Needless to say, this recipe for Monster Cookies has been in my recipe box for a long time. My three grown children still enjoy making and eating them. It is in all their recipe collections as well.

They’re big cookies and I know they’ve been used in my family as:

a meal replacement,

snacks for hikes,

energy boost eaten on the way to basketball practice,

grab and go monster cookie breakfast bar.

I hope you enjoy them too!

This Monster Cookies recipes makes a lot of cookies, so you can freeze some for later too, just make sure you put some wax paper between them so they won’t stick together.

Pin this and Share with Your Friends!

This Monster Cookies recipe combines peanut butter, oats, chocolate chips and M&M's for a giant, chewy cookie that will become a family favorite. Use different colored M&M's to make these giant monster cookies for any holiday or occasion!

Here’s the Recipe!

This Monster Cookies recipe combines peanut butter, oats, chocolate chips and M&M's for a giant, chewy cookie that will become a family favorite. Use different colored M&M's to make these giant monster cookies for any holiday or occasion!

Monster Cookies

This Monster Cookies recipe combines peanut butter, oats, chocolate chips and M&M's for a giant, chewy cookie that will become a family favorite. Use different colored M&M's to make these giant monster cookies for any holiday or occasion!

Yield: 54 Cookies
Prep Time: 20 minutes
Cook Time: 1 hour
Total Time: 1 hour 20 minutes

Ingredients

  • 6 eggs
  • 2 1/3 cups firmly packed brown sugar
  • 2 cups white sugar
  • 2 sticks of butter (1/2 pound), softened to room temperature
  • 1 Tablespoon light corn syrup
  • 1 teaspoon vanilla
  • 4 teaspoons baking soda
  • 2 1/4 cups peanut butter (you can use smooth or crunchy)
  • 1 1/2 cups flour
  • 7 cups quick 3 minute oats
  • 1 1/3 cups semi-sweet chocolate chips
  • 1 1/3 cup M&M's candies (standard size, any color combination you want)

Instructions

  1. Preheat your oven to 350 degrees Fahrenheit.
  2. Spray cookie sheets with nonstick spray or line with parchment paper or silicone mats. Use 4 cookie sheets to allow one set to cool while the next set is baking.
  3. Set aside 1/3 cup of the M&M's for adding to the top of the cookies later.
  4. In a large mixing bowl combine the peanut butter, butter, white sugar, brown sugar and corn syrup. Use an electric mixer to mix until it is well combined.
  5. Mix in the eggs, vanilla, baking soda and flour.
  6. Mix in the oats.
  7. Stir in the chocolate chips and M&M's (just 1 cup, keep the other 1/3 cup for later)
  8. Make large dough balls and pat them out into rounds that are about 3 1/2 inches in diameter and 1/2 inch tall. Place them on a cookie sheet with space around them to grow. You should only put 6 per cookie sheet. For the 60 minute cook time, you will need to cook 2 cookie sheets at a time.
  9. Add a few of the saved M&M's to the top of the cookies to make them pretty.
  10. Bake for 10-12 minutes until they turn golden brown around the edges. Make sure that you do not over bake them.
  11. Let the cookies cool for 5 minutes on the cookie sheets.
  12. Transfer to wire racks and allow them to cool completely before storing in an airtight container with wax paper between the layers of cookies to keep them from sticking together.
  13. Optionally, freeze some for later.

Nutrition

Yield:

54

Serving Size:

1

Amount Per Serving: Calories: 229|Total Fat: 12g|Saturated Fat: 5g|Trans Fat: 0g|Unsaturated Fat: 6g|Cholesterol: 30mg|Sodium: 186mg|Carbohydrates: 29g|Fiber: 1g|Sugar: 22g|Protein: 4g|

Nutrition information has been auto-calculated for your convenience.

Did you make this recipe?

Take a picture and tag @thewanderlustkitchen on Instagram and hashtag it #thewanderlustkitchen. We can't wait to see your version!

June 28, 2020 | Last Updated on March 4, 2021 by Linda

Leave a Comment

Sign Up for Email Updates

Get a Free eCookbook with our Top 25 Recipes

Skip to Recipe