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Big Chewy M&M Cookies

These big, chewy M&M cookies are a nostalgic treat that’s pretty much impossible to resist. Read on to find out how to make this classic cookie recipe!

Overhead view of M&M cookies on plate and cooling rack

Classic M&M Cookies

Food bloggers usually start their blog posts by talking about the way a recipe tastes, but I think it’s a safe bet that you’re here because you know exactly what a perfect M&M cookie tastes like and you want to make them yourself.

The best M&M cookies are chewy, buttery, full of milk chocolate flavor, and they have that irresistible bit of crunch from the candy shells. If that’s what you’re looking for, then this is the recipe for you!

Because there’s no such thing as too much M&M cookie, I made these cookies big by using a 3-tablespoon cookie scoop to portion out the dough. You can certainly make them smaller (be sure to adjust the baking time accordingly!), but when it comes to M&M cookies, I say you should go big or go home.

Overhead view of M&M cookie ingredients

What You’ll Need

Scroll down to the recipe card below this post for ingredient quantities and full instructions.

Stirring M&Ms into cookie dough with spatula

Can You Bake with Normal M&Ms?

Yes, you don’t need to buy the specialty bags of mini M&M baking bits that are sold alongside chocolate chips in the baking section. Just buy the regular-size, milk chocolate M&Ms for this recipe.

How to Make M&M Cookies

Ready to feel like a kid again? Here’s how to make your own M&M cookies at home!

Mix the dry ingredients. Whisk the flour, baking soda, and salt in a mixing bowl.

Mix the wet ingredients. Use an electric mixer on medium speed to beat the butter and sugars in another bowl, until they’re smooth. Beat in the egg, egg yolk, and vanilla.

Combine the wet and dry ingredients. Reduce the mixer speed to low and slowly add the flour mixture to the bowl with the eggs and butter, mixing just until combined. Fold in the M&Ms.

Chill the dough. Refrigerate the cookie dough for 30 to 60 minutes. This keeps the cookies from spreading!

Prepare. Preheat your oven to 325°F and line baking sheets with parchment paper or silicone liners.

Overhead view of M&M cookie dough balls on parchment-lined sheet

Form the cookies. Use a 3-tablespoon cookie scoop (or use a measuring spoon to portion the dough) to scoop the cookie dough, then use your hands to roll it into balls. Place the dough onto the prepared pans, leaving 2 to 3 inches between the cookies.

Bake. Bake the cookies one pan at a time for 15 to 20 minutes, or until the edges are beginning to brown and the centers are still soft.

M&M cookies on wire rack

Cool. Let the cookies cool on the pans on a wire rack for about 10 minutes, then remove them from the pans and place them directly on the racks to finish cooling. (Learn more: Why Every Baker Needs Wire Cooling Racks)

Overhead view of M&M cookies stacked on wire rack

Why Are My M&M Cookies Flat?

If your M&M cookies are flat, it could be that you used too much sugar or butter, or too little flour. Skipping the chilling time for the dough will also result in cookies that spread. Finally, be sure you’re lining your baking sheets rather than greasing them—greased baking sheets encourage cookies to spread out.

M&M cookies stacked on plate and wire rack

Tips for Success

Here are some hints and tips for perfect M&M cookies—and for making this recipe your own!

  • Chilling the dough. Refrigerating the dough is an important step for achieving a chewy cookie that doesn’t spread during baking. You can refrigerate the dough for more than an hour, but if you do this, you’ll want to let it sit at room temperature for a bit afterwards so it’s easier to scoop.
  • Adding chocolate chips. Some M&M cookies have a combination of M&Ms and chocolate chips. If you want to do this, simply swap out some of the M&Ms for milk chocolate or semisweet chocolate chips.
  • Don’t overbake! Remember, the cookies will continue baking from the residual heat on the pan after you remove them from the oven, so it’s absolutely fine if the centers aren’t set. If you wait too long to remove them from the oven, the cookies will be crispy instead of chewy.
Overhead view of big M&M cookies on plates and table

How to Store

Stored at room temperature in an airtight container, M&M cookies will last about 3 to 4 days.

Should You Refrigerate Cookies?

Nope, never! (Or, at least, almost never.) Unless it’s some kind of specialty cookie with a buttercream or cream cheese filling or frosting, cookies should never be stored in the refrigerator, as it will quickly dry them out and even affect their flavor.

3 M&M cookies stacked on plate with one bitten

Can M&M Cookies Be Frozen?

You can freeze M&M cookies in an airtight storage container or freezer bag for up to 3 months. If you’re stacking them, place parchment paper between the layers to keep them from sticking. Let them thaw at room temperature, or warm them up in the microwave for a few seconds.

Tall stack of M&M cookies on table

Video Tutorial: M&M Cookies

Big Chewy M&M Cookies

Yield about 30 cookies
Prep Time 15 minutes
Cook Time 20 minutes
Additional Time 1 hour
Total Time 1 hour 35 minutes

These Big Chewy M&M Cookies are soft, chewy, delicious, and irresistible!

Overhead view of M&M cookies stacked on wire rack


  • 2 cups plus 2 tablespoons (255g) all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon salt
  • 3/4 cup (170g) unsalted butter, melted and slightly cooled
  • 1 cup (200g) firmly packed light brown sugar
  • 1/2 cup (100g) granulated sugar
  • 1 large egg
  • 1 large egg yolk
  • 2 teaspoons vanilla extract
  • 1 & 1/2 cups M&Ms


  1. Whisk together the flour, baking soda, and salt. Set aside.
  2. Using an electric mixer on medium speed, beat the butter, brown sugar, and sugar until smooth. Add the egg, egg yolk, and vanilla. Beat until combined.
  3. Reduce mixer speed to low. Gradually add the flour mixture, and mix just until combined. Stir in the M&Ms.
  4. Refrigerate the dough for 30 to 60 minutes. If you refrigerate longer, you may want to let the dough sit at room temperature for several minutes so it will scoop more easily.
  5. Preheat oven to 325°F. Line baking sheets with parchment paper or silicone liners.
  6. Using 3 tablespoons of dough, roll the dough into balls. Place onto the prepared pans, leaving about 2 to 3 inches between cookies.
  7. Bake, one pan at a time, for 15-20 minutes, or until the edges are beginning to brown and the centers are still soft.
  8. Cool on the pans on a wire rack for about 10 minutes. Then transfer from the pans to wire racks to cool completely.


Recipe adapted from America’s Test Kitchen.

Stored at room temperature in an airtight container, M&M cookies will last about 3 to 4 days. They can also be frozen for up to 3 months; let them thaw at room temperature or warm them up in the microwave.

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    19 Comments on “Big Chewy M&M Cookies”

  1. Yum! These cookies look awesome…M&M cookies are so much fun!

  2. I was that lucky recipient and they were yummy!!!! 😉

  3. Congrats Jeanette!
    They do look yummy!

  4. yum! I love how the colours have stayed do vibrant and not bled into the cookie!

  5. These look so pillowy and wonderful. I wish I was sinking my teeth into one right now!

  6. It looks yummy and it’s nice colorful! 🙂

  7. These look great and I’ve bought everything to make them but one question – do you leave the dough in balls or flatten them a bit before they go in the oven?

  8. I just made these cookies with red & green M & M’s for Christmas! They turned out really good! So happy!

  9. Really good recipe! Thank You!

  10. Did anyone else find the dough super sticky? It was so sticky for me to roll so I just scooped some in my Hand and dropped it on the tray. The dough did taste yummy though 🙂

  11. Absolute favorite kind of cookie! Can’t wait for the chewiness of these, knowing me ill use just a bit more chocolate chips than recommended. Gotta satisfy that sweet tooth (and these will!)

  12. What should I do with the cookie dough that is waiting for the oven? Leave it out or put it in the refrigerator?

  13. Can I substitute any kind of candy for the m&m’s, such as snickers, milky way or peanut m&m’s??

  14. Made these cookies yesterday. They only lasted for 2 days. Making a new batch as we speak. Best m@m cookies i’ve ever made!

  15. I know it’s been years since you posted this recipe, but I just baked these delicious cookies today. I used a 3TB scoop and baked them 6 to a sheet for 17 minutes. They came out perfect and I didn’t change a thing in your recipe.
    My only other comment would that the yield amount is wrong, at least if you use the 3TB scoop. I ended up with 18 delicious cookies.

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