M&M Cookie Bars


Want a tasty, crowd pleasing treat that doesn’t take much time or effort to make? Look no further, you’ve found it here with these M&M Cookie Bars. These wonderfully thick and chewy bars are simply delicious, buttery and chocolatey and every single bite is just bursting with M&M’s. And as I’ve mentioned, they are so easy to make I could almost do it in my sleep. (And perhaps I have…though that is an entirely different story) But really, in 45 minutes these little devils are done and dusted with the dishes washed up and everything!


The great thing about using M&M’s in these bars, besides the fact that folks just plain love them, is that it makes the dessert very versatile. M&M’s come in so many varieties these days. You can find bags of them with colours customized for almost every holiday, they come in white chocolate, dark chocolate, peanut butter, pretzel filled, etc. etc. By changing which type of M&M you use, you’ll seem to have come up with a brand spanking new dessert every time. Minimal effort, maximum results. Gotta love that. Bake yourself the first of many batches today!


M&M Cookie Bars

recipe from: What Megan’s Making

yield: 16 squares


  • 2 1/8 cups flour
  • 1/2 tsp salt
  • 1/2 tsp baking soda
  • 12 Tbsp butter (1 1/2 sticks), melted and cooled slightly
  • 1 cup brown sugar
  • 1/2 cup white sugar
  • 1 large egg
  • 1 large egg yolk
  • 2 tsps vanilla extract
  • 1 12oz bag M&M’s, divided ( I used mini M&M’s but regular sized will work fine as well)


Preheat the oven to 325° F. Adjust the oven rack to lower-middle position. Grease a 9×9″ pan and set aside.

In a medium-sized bowl, whisk together the flour, salt, and baking soda and set aside.

In a large bowl, whisk the melted butter and sugars until combined. Add the egg, egg yolk, and vanilla and mix well. Using a rubber spatula, fold the dry ingredients into the egg mixture until just combined; do not overmix. Fold in 1 cup of M&M’s and turn the batter into the prepared pan, smoothing the top with the spatula. Sprinkle remaining M&M’s on top and press in slightly.

Bake 25-30 minutes, until the top of the bars is light golden brown, slightly firm to the touch, and edges start pulling away from sides of pan. Cool completely before cutting.


5 Responses to M&M Cookie Bars

  1. Poppy says:

    So colourful!!

  2. ashnicolej says:

    Reblogged this on I'm just Ashley and commented:
    Have to make these!

  3. DraHaink says:

    Reblogged this on drahaink and commented:

  4. A reblogué ceci sur Mademoiselle Miam and commented:
    Awesome !!!!!

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