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 18-25 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 mins
Cook 25 mins
Total 35 mins
Add to Meal Plan

Video

Ingredients
  

  • 3 cups all-purpose flour
  • 3/4 teaspoon baking powder
  • 3/4 teaspoon baking soda
  • 3/4 teaspoon salt
  • 1 cup butter room temperature
  • 3/4 cup granulated sugar
  • 1 cup light brown sugar
  • 2 eggs
  • 2 teaspoons vanilla extract
  • 1 heaping cup M&M candies
  • ½ cup mini chocolate chips

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 18-25 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.

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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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Comments

  1. 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

  2. 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!

    1. I don’t think you need to do either. Just use same temperature and keep an eye on them if they may need a minute or two more but not sure they will.

  3. 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!

  4. 5 stars
    They were delicious and quite a crowd pleaser. I would definitely recommend this recipe and will make them again!

  5. 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!