Search
Close this search box.

Simple M&M Cookie Bars · Pint-sized Treasures

Share Article


The Perfect, Chewy M&M Cookie Bar Recipe

We all need a quick, super simple recipe we can make for our family and friends. This classic M&M cookie bar recipe hits the spot every time.

There’s no chilling required (yay for that!) and this recipe uses common kitchen ingredients you probably already have in your pantry and fridge.


M&M Cookie Bars on a cutting board

Plus, you can make these cookie bars ahead of time and freeze for any type of day that needs a cookie bar to make it better.

Before diving into this recipe, make sure that you have all the ingredients necessary to satisfy your sweet tooth!


The ingredients separated into different glass bowls

Ingredients

Flour. Use all purpose flour for best results.
Cornstarch. This ingredient makes the cookie bars super soft!
Baking soda. Just a few pinches help these cookie bars rise.
Baking powder. Don’t add too much!
Salt. Always add salt to bring out all the flavors.
Butter. Use unsalted and brown the butter first.
Brown sugar. Adds a toasty flavor.
White Sugar. To add the perfect amount of sweetness to each cookie bar.
Eggs. These hold the bars together.
Vanilla extract. Use REAL vanilla extract, pretty please! 🙂
Mini M&M’s. The smaller version keeps the bars super pretty and evenly distributes the chocolate covered candy pieces.
Semisweet chocolate chips. You can use milk or dark chocolate, but we highly recommend semi-sweet for the perfect touch of sweetness!


Wet and dry ingredients in a box before they're mixed

How to Make M & M Cookie Bars

  • First, preheat the oven to 350 degrees Fahrenheit. Prepare a baking dish with parchment paper.
  • In a mixing bowl, sift together the flour, cornstarch, baking powder, baking soda, and salt.
  • Set the dry ingredients aside.
  • In a smaller bowl, add the slightly cooled browned butter, brown sugar and white sugar. Whisk together until combined.
  • Then add the eggs and vanilla. Whisk it all again until it’s smooth.
  • Pour the wet ingredients into the dry and fold together with a rubber spatula until incorporated. The dough should be thick.

The cookie dough mixed before adding M&Ms
  • Don’t forget to add the chocolate chips and mini M&M’s! Then, fold them into the dough until evenly distributed.
  • Transfer the dough into the prepared baking dish. Press the dough into the dish, spreading the dough evenly.

Cookie dough mixed with M&Ms spread out in baking dish
  • Once the oven is preheated, bake the dish in the oven for about 24 minutes or until the top has become crusted.
  • As soon as you remove the dish from the oven, top it with extra mini M&M’s and slightly press them into the top of the warm cookie bars.

Cooked cookie bars before they're cut
  • Let cool it for at least 15 minutes before cutting it into squares
  • Lastly, they’re ready to serve!

Cookie bars served on a plate

More Simple Desserts

Enjoy!

Ingredients

  • 2 1⁄2 cup all purpose flour
  • 1 1⁄2 teaspoons cornstarch
  • 1 teaspoon baking soda
  • 1⁄4 teaspoon baking powder
  • 1⁄2 teaspoon salt
  • 1 cup unsalted butter
  • 1 cup brown sugar
  • 1⁄2 cup white granulated sugar
  • 2 eggs
  • 2 teaspoons vanilla extract
  • 1 1⁄2 cups mini M&M’s
  • 1⁄2 cup semisweet chocolate chips

Instructions

  1. Brown the butter by placing the unsalted sticks of butter into a stainless steel skillet and melting over medium low heat, stirring constantly. The butter is ready when you see golden brown flecks along the bottom of the pan.
  2. Preheat the oven to 350 degrees Fahrenheit. Prepare a baking dish with parchment paper.
  3. In a mixing bowl, sift together the flour, cornstarch, baking powder, baking soda and salt. Set aside.
  4. In a smaller bowl, add the slightly cooled browned butter, brown sugar and white sugar. Whisk together until combined.
  5. Then add the eggs and vanilla. Whisk again until smooth.
  6. Pour the wet ingredients into the dry and fold together with a rubber spatula until 
incorporated. The dough should be thick.
  7. Add the chocolate chips and mini M&M’s. Fold into the dough until evenly distributed.
  8. Transfer the dough into the prepared baking dish. Press into the dish, spreading evenly.
  9. Bake in the oven for about 24 minutes or until the top has become crusted.
  10. As soon as you remove from the oven, top with extra mini M&M’s and slightly press into 
the top of the warm cookie bars.
  11. Let cool for at least 15 minutes. before cutting into squares and serving.
  12. Serve and store any leftovers in an airtight container.
Nutrition Information:

Yield: 24

Serving Size: 1

Amount Per Serving:

Calories: 249Total Fat: 12gSaturated Fat: 7gTrans Fat: 0gUnsaturated Fat: 4gCholesterol: 38mgSodium: 119mgCarbohydrates: 33gFiber: 1gSugar: 22gProtein: 3g

Nutrition values are estimates only, and are provided only as a courtesy.

You might also like