Classic M&M’s Cookie Bars Recipe: Chewy, Gooey, and Colorful

Bake up chewy, colorful classic M&M’s cookie bars, a fun, nostalgic treat that’s easy to make and always a hit for holidays or anytime!

If there is one dessert you can guarantee will be a hit with kids (and adults) it is M&M cookie bars.

Here are just a few reasons why this treat is a go-to for any get together or weekend snack.

Why Classic M&M’s Cookie Bars Are A Favorite Treat

• Nostalgic Flavor – They bring back childhood memories with every colorful bite.
• Perfectly Chewy – Soft centers with slightly crisp edges make them irresistible.
• Fun & Festive – Bright M&M’s add a pop of color that fits any season or celebration. Change out to seasonal M&M's for holidays.
• Easy to Make – One pan, simple ingredients, and no fuss baking.
• Crowd-Pleaser – Loved by both kids and adults, making them ideal for parties or holidays.

Ingredients

You will need the following ingredients listed below to make this dessert recipe (the exact measurements, nutrition information and full recipe are all in the printable recipe card at the bottom of the post).

• All Purpose Flour
• Cornstarch
• Baking Soda
• Baking Powder
• Salt
• Unsalted Butter
• Brown Sugar
• White Granulated Sugar
• Eggs
• Vanilla Extract
• Mini M&M’s
• Semisweet Chocolate Chips

Kitchen Tools

• Parchment Paper
• 9x11 Baking Dish

How to Make M&M's Cookie Bars

• 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 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 again until smooth.

• Pour the wet ingredients into the dry and fold together with a rubber spatula until incorporated. The dough should be thick.
• Add the chocolate chips and mini M&M's. Fold into the dough until evenly distributed.

• Transfer the dough into the prepared baking dish. Press into the dish, spreading evenly.
• Bake in the oven for about 24 minutes or until the top has become crusted.
• 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.
• Let cool for at least 15 minutes before cutting into squares and serving!

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