Thick and Chewy M&M’S Chocolate Chip Cookie Bars Recipe

Sharing is caring!

Chewy M&M’s Chocolate Chip Cookie Bars are thick and delicious and perfect when you need a quick dessert. Perfect for holidays and bake sales too!

Chewy M&M's Chocolate Chip Cookie Bars are thick and delicious and perfect when you need a quick dessert. Perfect for holidays and bake sales too!

Click HERE to save recipe to Pinterest

Sometimes life is busy and when you’re craving cookies you just don’t have time to bake batch after batch.

That’s when a delicious chocolate chip cookie bar comes to the rescue.

All the same chewy cookie flavor, with much less work.

Today’s M&M Chocolate Chip Cookie Bars are thick and chewy, but super easy to make!

How to Make M&M Cookie Bars

If you want the recipe NOW, scroll on down for the printable instructions.

Chewy M&M's Chocolate Chip Cookie Bars are thick and delicious and perfect when you need a quick dessert. Perfect for holidays and bake sales too!

First, know that these cookie bars are so versatile and can stand up to any of your favorite mix-ins. Love holiday M&M’S candies? Add them in.

Love butterscotch chips with macadamia nuts. Add it in. 

Got a taste for toffee bits with walnuts? Add it in.

I chose to do a combination of semi-sweet chocolate chips with original M&M’s candies. Classic. Delicious. 

First, line a 13×9 baking dish with parchment paper (or foil). Do NOT use wax paper. For THINNER bars, you can use a 15×10 inch baking sheet and cook for less time.

Preheat oven to 350 degrees F.

In a mixing bowl, cream together the unsalted butter with granulated sugar and brown sugar. Add the eggs and vanilla and beat until well combined.

Add the flour, baking soda, cornstarch, and kosher salt. Blend until dough forms.

Fold in chocolate chips and candies.

Drop dough into prepared pan and spread evenly. Add more candies on top if desired.

Bake in preheated oven for 35 minutes. Remove and cool before cutting.

Chewy M&M's Chocolate Chip Cookie Bars are thick and delicious and perfect when you need a quick dessert. Perfect for holidays and bake sales too!

Helpful tips for Chocolate Chip Cookie Bars

Add cornstarch to help keep these cookie bars soft! Just one teaspoon is enough, but if you want to omit it, that’s fine too!

One extra egg yolk. You’re wondering if it’s worth it. Should you skip it? Should you add the whole egg? Why just an extra egg yolk? Well, the extra egg yolk is just enough egg in this recipe to help these bars stay chewy and soft. Yes, you can toss in a whole egg if you prefer…but you came here for the PERFECT Chocolate Chip Cookie Bar…and this extra egg yolk is why it’s the best!

When spreading the cookie dough into the baking dish, dip your fingers in flour first. This keeps the dough from sticking to YOU!

Remove from oven when lightly browned. Don’t overcook. These bars will continue to bake for a few minutes in the dish.

I like my cookie bars with extra chocolate chip. You’ll see the fudgy center of my cookies bars, that’s because I always throw in an extra 1/4-1/2 cup chocolate chips. Add to taste!

Store cookie bars in airtight container for up to 3 days.

For freezing, wrap cookie bars in parchment paper, then in a freezer safe ziploc bag or container. Thaw at room temperature before eating.

Chewy M&M's Chocolate Chip Cookie Bars are thick and delicious and perfect when you need a quick dessert. Perfect for holidays and bake sales too!

More Cookie Bar Recipes:

Before you go to all my favorite cookie bars, be sure to check out the recipe for my Perfect Chocolate Chip Cookies. Hands down, this is my favorite cookie recipe. And the secret ingredient makes it irresistible!

Melt in your mouth, Raspberry Shortbread Bars with a delicious crumble on top!

Whether it’s Game Day or Monday, these Easy Frosted Chocolate Nut Cookie Bars are sure to be a hit! Even my family, who hates nuts in their cookies, loved these bars!

Butterfinger Fudge Cookie Bars are peanut butter cookies, topped with a soft chocolate fudge layer and crushed Butterfingers. You’re going to want to make these…trust me!

Hate making cutout gingerbread cookies? These Gingerbread Cookie Bars are soft and chewy and topped with a delicious cream cheese frosting. Whip up a batch this holiday season!

A classic sugar cookie made easy by making them into bars. Frost with a generous layer of buttercream, tinted in your favorite color! Frosted Sugar Cookie Bars are a family favorite!

Chewy M&M's Chocolate Chip Cookie Bars are thick and delicious and perfect when you need a quick dessert. Perfect for holidays and bake sales too!

Connect with Shugary Sweets! 

Be sure to follow me on my social media, so you never miss a post!

Facebook | Twitter |  Pinterest | instagram 

Be sure to follow me on Instagram and tag #shugarysweets so I can see all the wonderful SHUGARY SWEETS recipes YOU make!

I created a fun little group on facebook and I’d love for you to join in! It’s a place where you can share YOUR favorite recipes, ask questions, and see what’s new with Shugary Sweets (so that you never miss a new recipe)! If you’d like to check it out, you can request to join HERE.

Yield: 24 bars

M&M'S Chocolate Chip Cookie Bars

M&M'S Chocolate Chip Cookie Bars
Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes

Chewy M&M's Chocolate Chip Cookie Bars are thick and delicious and perfect when you need a quick dessert. Perfect for holidays and bake sales too!

Ingredients

  • 1 cup unsalted butter, softened
  • 1 cup granulated sugar
  • 1 cup light brown sugar, packed
  • 2 large eggs
  • 1 large egg yolk
  • 2 tsp vanilla extract
  • 3 cups all-purpose flour
  • 1 tsp baking soda
  • 1 tsp cornstarch
  • 1 tsp kosher salt
  • 1 1/2 cups semi-sweet chocolate chips
  • 1 1/2 cups M&M's candies (any color or variety)

Instructions

  1. Preheat oven to 350 degrees F. Line a 13x9 baking dish with parchment paper (or foil). Set aside.
  2. In a large bowl, combine butter and sugars until well blended. Add in eggs, egg yolk, and vanilla extract. Mix until combined.
  3. Add in flour, baking soda, cornstarch, and kosher salt just until combined. Fold in chocolate chips and M&M's.
  4. Press cookie dough into baking dish.
  5. Bake 35 minutes until lightly browned. Remove and cool completely.
  6. Store in airtight container for up to 3 days.

Nutrition Information:

Yield:

24

Serving Size:

1 bar

Amount Per Serving: Calories: 316 Total Fat: 15g Saturated Fat: 9g Trans Fat: 0g Unsaturated Fat: 5g Cholesterol: 53mg Sodium: 171mg Carbohydrates: 44g Fiber: 1g Sugar: 30g Protein: 4g
*Nutrition facts are an estimate and not guaranteed to be accurate. Please see a registered dietitian for special diet advice

**There may be affiliate links in this post! By clicking on them, or purchasing recommended items I may receive a small compensation. However, I only recommend products I love! Thank you for supporting Shugary Sweets! See my disclosure policy for more info**

11 comments on “Thick and Chewy M&M’S Chocolate Chip Cookie Bars Recipe”

  1. Dini

    These cookies bars look so fun and colorful! And I love how versatile they are. I’m going to try this for my niece’s birthday coming up. 🙂 Thank you so much for sharing!

  2. Jennifer Farley

    These bars are incredible!

  3. These bars are amazing!! My kids would LOVE these!!

  4. Ashley F

    We love how easy these are to throw together! They are gone in no time here!

  5. Pam Dana

    My kids and their friends devoured this pan in one sitting! It was a hit!

  6. Cheryl S

    This recipe is always a hit and gone in a flash

  7. Becky Hardin

    Oh yum! These are a huge favorite of ours! So good and fun! 

  8. Pingback: Perfect Chocolate Chip Cookies - Shugary Sweets

  9. Sue

    I made these last week and they were gone in two days! My husband asked me today if I could make them again as soon as I have time. Now, if you knew my husband you would know what a compliment that is!
    Only change I made was to brown the butter. I ALWAYS brown the butter in cookies.
    They were delicious.

  10. Pingback: The BEST, soft and chewy, M&M's Cookie Bars Recipe

  11. Pingback: Perfect, Easy Double Chocolate Chip Cookies Recipe

Leave a Reply

Your email address will not be published.