These thick and chewy M&M Cookie Bars are made with basic pantry staples and capture all the chewy deliciousness of regular M&M cookies without needing to scoop or roll the dough! 

Oh how I love a delicious cookie bar!  If you like these, don't miss my Oatmeal Chocolate Chip Cookie Bars, Sugar Cookie Bars, and Magic Bars.

M&M Cookie Bars cut into squares on a board with parchment paper.

There's nothing you wont LOVE about these M&M Cookie Bars but you'll especially love how easy they are to make! No rolling or chilling the dough or baking several batches–just press everything into a 9×13 pan and bake! They feed a crowd and everyone always raves about them! What's not to love about super soft, chewy, cookie bars loaded with M&M candies?

How to Make M&M Cookie Bars:

1. Combine dry ingredients: flour, baking powder, baking soda and salt in a medium bowl; set aside.

2. Combine wet ingredients: Add butter, sugar and brown sugar to a large mixing bowl or stand mixer and beat well until creamed together. Add egg and vanilla and mix until combined. Gradually mix in the dry ingredients and mix until combined.

Two process photos for making M&M cookie dough in a mixing bowl.

3. Add chocolate: Stir in chocolate chips and m&m’s.

4. Bake:  Press dough into a greased 9×13” pan and bake at 350 degrees F. for 22-35 minutes. Remove from pan and let cool completely. Pull up on the sides of parchment paper to remove bars from the pan and cut into squares.

A pan with M&M Cookie Bars dough, then a photo of the baked bars, cut into squares.

Make Ahead And Freezing Instructions:

To make ahead: The cookie dough can be made 2-3 days ahead of time, stored in the refrigerator.

To freeze: allow baked bars to cool completely after cooking and cut them into squares.  Place squares into a freezer safe bag or container and freeze for up to 3 months. Cookie dough can also be frozen for up to 3 months.

Recipes Variations:

  • Add nuts: chopped walnuts or pecans
  • Substitute the chips: feel free to add or substitute your favorite “chips”, like peanut butter or white chocolate chips.

Looking for more Cookie and Bar recipes? Try these:

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Recipe

M&M Cookie Bars cut into squares on a board with parchment paper.
Prep 10 minutes
Cook 25 minutes
Total 35 minutes
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Ingredients
  

Instructions
 

  • Preheat oven to 350 degrees F.
  • Line a 9 x13 baking pan with parchment paper. Set aside.
  • Combine flour, baking powder, baking soda and salt in a medium bowl; set aside.
  • Add butter, sugar and brown sugar to a large mixing bowl or stand mixer and beat well until creamed together. Add egg and vanilla and mix until combined.
  • Gradually mix in the flour and mix until combined. Stir in chocolate chips and m&m’s. Press dough into an even layer in prepared pan.
  • Bake for 22-35 minutes or until a toothpick inserted in the center comes out clean.
  • Remove from pan and let cool completely. Pull on side of parchment paper to remove bars from the pan and cut into squares.

Notes

Make ahead Instructions: The cookie dough can be made 2-3 days ahead of time, stored in the refrigerator.
Freezing Instructions: allow baked bars to cool completely after cooking and cut them into squares.  Place squares into a freezer safe bag or container and freeze for up to 3 months. Cookie dough can also be frozen for up to 3 months.
Recipes Variations:
  • Add nuts: chopped walnuts or pecans
  • Substitute the chips: feel free to add or substitute your favorite "chips", like peanut butter or white chocolate chips.

Nutrition

Calories: 251kcalCarbohydrates: 36gProtein: 3gFat: 11gSaturated Fat: 7gCholesterol: 41mgSodium: 222mgPotassium: 59mgFiber: 1gSugar: 21gVitamin A: 317IUCalcium: 29mgIron: 1mg

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Have you tried this recipe?!

RATE and COMMENT below! I would love to hear your experience.

I originally shared this recipe June 2017. Updated October 2020.

This post contains affiliate links.

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About The Author

Lauren Allen

Welcome! I’m Lauren, a mom of four and lover of good food. Here you’ll find easy recipes and weeknight meal ideas made with real ingredients, with step-by-step photos and videos.

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Debbie Fisher
3 years ago

5 stars
My family loves this recipe! Just one question, it says to remove from the pan twice. Once after baking and once after cooling. Which do you do? I tried to remove it after baking this time after about 10 minutes and they cracked so I’m guessing to let them cool fully in the pan?

Meg
3 years ago

5 stars
These were so easy to make and the fact that you can make in advance and freeze is a win win. My grandsons love them. I just made another batch for my grandsons birthday.

BLD3
3 years ago

4 stars
I needed to store in frig overnite. Next morning, I thawed at rm temp for an hour. It was still tough to manipulate as i waited to fold in morsels and M& Ms. It baked nicely and tasted really good, fairly dense on finish.

Emily
3 years ago

5 stars
I added 1/4 c. cocoa to the mix and some pearl sugar on top for extra crunch! These are the perfect consistency and yumminess. Thanks!

Lisa
3 years ago

These are so delicious! My go-to blonde brownie recipe from now on!

Lisa
4 years ago

5 stars
They were delicious and quite a crowd pleaser. I would definitely recommend this recipe and will make them again!

Julie
4 years ago

5 stars
Easy, easy recipe! I made these during the pandemic shut down and they went so fast. They are delicious! I am making them again for the 4th of July with red, white and blue M&Ms. can’t wait!

Shannon Krieger
6 years ago

These look similar to a cookie recipe I use…so yummy! I’d like to double the recipe and bake in a large cookie sheet with sides…would you bake at same temp and maybe increase time to 20 minutes? Thanks!

Michaela
6 years ago

5 stars
Hello, sorry i am from Germany, we bake with gram or pound. Can you tell me please how much butter are 12 Tbsp in gram?
Thank you ?
Michi

Ann
7 years ago

5 stars
I made these to bring to a kids party and everyone raved! Thanks so much for sharing this recipe.

Tina
7 years ago
Reply to  Ann

5 stars
We tried them too, my kids stirred in some peanut butter and they were awesome!

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