I love making these M&M Cookie Bars whenever I want an easy dessert that feels fun, colorful, and incredibly satisfying. These soft and chewy cookie bars are packed with chocolate chips and crunchy candy-coated chocolates, making every bite rich and sweet. I enjoy how simple the batter comes together in one bowl, and I can easily prepare them for parties, family gatherings, or a quick weekend treat.
Why You’ll Love This Recipe
I love this recipe because it combines the flavor of classic chocolate chip cookies with the convenience of cookie bars. I don’t need to scoop individual cookies, which saves me time in the kitchen. The bars bake evenly, stay soft in the center, and have perfectly chewy edges. I also like how customizable they are since I can swap the candies or add extra mix-ins whenever I want.
Ingredients
(Here’s a tip: Check out the full list of ingredients and measurements in the recipe card below.)
1 cup unsalted butter, melted
1 cup brown sugar
1/2 cup granulated sugar
2 large eggs
2 teaspoons vanilla extract
2 1/2 cups all-purpose flour
1 teaspoon baking soda
1/2 teaspoon salt
1 cup chocolate chips
1 1/2 cups M&M candies
Directions
I preheat the oven to 350°F (175°C) and line a 9×13-inch baking pan with parchment paper.
I whisk together the melted butter, brown sugar, and granulated sugar until smooth.
I add the eggs and vanilla extract, then mix until fully combined.
I stir in the flour, baking soda, and salt until a thick dough forms.
I fold in the chocolate chips and most of the M&M candies, saving a handful for the top.
I spread the dough evenly into the prepared baking pan and sprinkle the remaining candies over the surface.
I bake the bars for 25 to 30 minutes, or until the edges are golden brown and the center is set.
I let the bars cool completely before slicing them into squares.
Servings and timing
Servings: 16 bars
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Variations
I sometimes swap the chocolate chips for white chocolate chips or peanut butter chips for a different flavor. During holidays, I like using seasonal M&M candies to match the occasion. I also enjoy adding chopped walnuts or pecans for extra crunch. When I want an even richer dessert, I drizzle melted chocolate over the cooled bars before serving.
storage/reheating
I store the cookie bars in an airtight container at room temperature for up to 5 days. If I want them to stay fresh longer, I refrigerate them for up to 1 week. I can also freeze the bars for up to 3 months by wrapping them tightly in plastic wrap and placing them in a freezer-safe container. To reheat, I warm a bar in the microwave for about 10 to 15 seconds until soft and gooey.
FAQs
Can I use mini M&M candies instead of regular ones?
I can absolutely use mini M&M candies if I want more candy coverage throughout the bars.
Can I make these cookie bars ahead of time?
I often make these bars a day ahead because the texture stays soft and chewy even after storing them overnight.
Why are my cookie bars dry?
I make sure not to overbake the bars because they continue to set as they cool in the pan.
Can I double this recipe?
I can double the recipe and bake it in a larger sheet pan when serving a crowd.
Can I add other mix-ins?
I like adding pretzels, nuts, caramel bits, or even shredded coconut for extra flavor and texture.
Conclusion
I enjoy making these M&M Cookie Bars because they are simple, colorful, and packed with chocolatey goodness. The chewy texture and crunchy candy topping make them a dessert I always come back to for parties, bake sales, or casual family treats. They are easy to customize and even easier to share, which makes them one of my favorite dessert bars to bake anytime.
Soft and chewy M&M Cookie Bars packed with chocolate chips and colorful candy-coated chocolates. These easy dessert bars come together quickly in one bowl and are perfect for parties, bake sales, or family treats.
Ingredients
1 cup unsalted butter, melted
1 cup brown sugar
1/2 cup granulated sugar
2 large eggs
2 teaspoons vanilla extract
2 1/2 cups all-purpose flour
1 teaspoon baking soda
1/2 teaspoon salt
1 cup chocolate chips
1 1/2 cups M&M candies
Instructions
Preheat the oven to 350°F (175°C) and line a 9×13-inch baking pan with parchment paper.
Whisk together the melted butter, brown sugar, and granulated sugar until smooth.
Add the eggs and vanilla extract, then mix until fully combined.
Stir in the flour, baking soda, and salt until a thick dough forms.
Fold in the chocolate chips and most of the M&M candies, saving a handful for the top.
Spread the dough evenly into the prepared baking pan and sprinkle the remaining candies over the surface.
Bake the bars for 25 to 30 minutes, or until the edges are golden brown and the center is set.
Let the bars cool completely before slicing them into squares.
Notes
Do not overbake the bars to keep them soft and chewy.
Use seasonal M&M candies for holiday-themed cookie bars.
White chocolate chips or peanut butter chips can be substituted for chocolate chips.
Chopped walnuts or pecans add extra crunch and flavor.
Store in an airtight container at room temperature for up to 5 days.
Freeze tightly wrapped bars for up to 3 months.
Warm in the microwave for 10 to 15 seconds before serving for a gooey texture.
