Chocolate chip M&M cookie bars

These thick and chewy chocolate chip M&M cookie bars are comforting. They are like your favorite chocolate chip cookie in bar form and loaded with M&M candies!

Chocolate chip M&M cookie bars

For Christmas last year, my brother gifted me with one of those mega M&M sleeves. It was a long, skinny box with about 20 packs of M&Ms inside. He remembered that M&Ms were one of my favorite candies so he wanted to make sure I was all sugared up.

Chocolate chip M&M cookie bars

Fast forward to today. I hadn’t eaten any of it yet (whuuuut?) so I decided to bake with them. But how best to feature M&Ms? Well, what about these chocolate chip M&M cookie bars? They’re like chocolate chip cookies, except in bar form. And then on top of that, they’re filled and topped with M&Ms!

Chocolate chip M&M cookie bars

I probably used 3 packs of those giant M&M bags for these cookie bars. Then I sprinkled about another bag’s worth on top after the bars came out of the oven. We brought these bars to a friend’s house one evening and were pleased to see that everyone liked them.

Chocolate chip M&M cookie bars

The bars were super thick, and nice and chewy. Each bite was filled with both chocolate chips and M&Ms. This was one great way to get a chocolate fix.

If you have lots of M&Ms hanging around the house, send them over. Or better yet, make these chocolate chip M&M cookie bars and send them to me. Yeah, that would be even better!

Chocolate chip M&M cookie bars

A super thick and chewy chocolate chip M&M cookie bar that's perfect for parties
Prep Time15 minutes
Cook Time35 minutes
Total Time50 minutes
Course: Dessert
Cuisine: American
Keyword: Bars, Cookies
Servings: 24
Author: Eva Bakes


  • 1 cup (2 sticks) unsalted butter room temperature
  • 1 cup granulated sugar
  • 1 cup brown sugar packed
  • 2 eggs
  • 2 teaspoons vanilla extract
  • 1 teaspoon baking soda
  • 1 teaspoon corn starch
  • 1/2 teaspoon salt
  • 3 cups all-purpose flour
  • 1 cup chocolate chips
  • 1 and 1/2 cups M&M candies


  • Preheat your oven to 350 degrees F. Generously grease or line a standard 9" x 13" baking pan and set aside.
  • In the bowl of a stand mixer fitted with the paddle attachment or in a large bowl if using a handheld mixer, cream the butter and sugars on medium speed until light and fluffy, about 2-3 minutes.
  • Add the eggs and vanilla and mix well. Then add the baking soda, corn starch, salt and flour.
  • Turn the mixer off and fold in the chocolate chips and M&M candies by hand.
  • Transfer the dough to your prepared an and spread it out evenly. Make sure you smooth the top so there are no bumps.
  • Bake in your preheated oven for 35 minutes or until the tops start to turn a light golden color.
  • Allow the bars to cool before slicing and serving.


Bars should be stored in an airtight container at room temperature and will keep for several days.
Source: Slightly adapted from Shugary Sweets


  1. June
    March 29, 2019 / 4:11 pm

    You found my kryptonite; M&Ms! I’m looking forward to making this recipe!

    • evabakes
      April 1, 2019 / 1:57 am

      Enjoy, June!

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