M&M Cookie Bars – The best lazy girl dessert!

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I LOVE M&M cookies, but I also love a dessert that comes together in one bowl, takes five minutes to whip up, and doesn’t require me babysitting the oven while swapping out cookie sheets. M&M cookie bars have entered the chat!

These M&M Cookie bars are soft, chewy, and filled with M&Ms and mini chocolate chips (optional, but highly suggested)! They’re inspired by the classic M&M cookie which is always a favorite – you can find my M&M Cookie Recipe here!

Storing M&M Cookie Bars

These cookie bars bake in an 8×8 pan that you can cover with foil to save for later, or cut cookie bars and store in an airtight container or bag for several days *but they won’t last that long! You can freeze these cookie bars after baking if you want to save for later!

Why you’ll love these M&M Cookie Bars

• No chilling, no mixer needed, no rolling cookies – this dessert is super easy to whip up!
• You can swap out the M&Ms to match seasonal colors. Who doesn’t love a fun seasonal dessert?
• You can easily double this recipe to make a larger pan to feed a crowd – perfect for family BBQs, birthday parties, and more!
• These are easily customized by topping with sprinkles, icing, different color M&Ms, etc!

Success Tips for the Best Results

• Allow bars to cool for an hour before cutting into them for the neatest slices
• Do not over-bake! These bars are best when they have a little crunch on the edges but are soft and chewy in the middle.

Let’s get to baking!

Ingredients

• 1/2 cup butter, melted
• 1/2 cup brown sugar
• 1/2 cup powdered sugar
• 2 eggs
• 1 tbsp vanilla
• 1 cup flour
• 1 cup M&Ms
• 1/2 cup mini chocolate chips (optional, but you should definitely add them ;))

Directions

In a microwave safe mixing bowl, microwave butter until just melted. Or you can melt this stovetop. Let the butter cool for 10 minutes at room temperature. While butter is cooling, preheat oven to 350 degrees. Spray 8×8 baking pan with non-stick cooking spray

Combine sugars into mixing bowl. Mix with butter until combined.

Add in eggs and vanilla extract, mix until combined.

Next, add in flour and mix until just combined

Last, Fold in M&Ms and mini chocolate chips

Pour M&M cookie bar batter into greased baking sheet. Bake for 22 minutes.

Allow to cool. Slice, enjoy!

As always, I love to hear from you! Please let me know if you give this recipe a try. I can’t wait to hear how much you love it!