Tessa’s Recipe Rundown
Taste: Loaded with butterscotch flavor and classic M&Ms. It’s like biting into nostalgia!
Texture: Ridiculously soft and chewy with the perfect crunch from the M&Ms.
Ease: Very easy, quick, and fool-proof. A reliable recipe that actually turns out each time.
Why You’ll Love This Recipe: Classic, delicious cookies everyone will love – especially the kiddos.
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These Soft and Chewy M&M Cookies are colorful, adorable, nostalgic, and SO delicious your family will ask you to bake them again and again!
After writing an entire cookbook dedicated to cookies, I think we can safely say I’m cookie obsessed.
So when I went to revamp this recipe, originally published in 2015, I was well-equipped with all the tips, tricks, and techniques I learned while writing my cookbook.
Struggling with Flat or Dry Cookies?
My free guide shows you how to fix texture problems and bake cookies you’ll love.
My goal for this recipe was for the M&M candies to shine, with a perfectly balanced, butterscotchy cookie dough that’s ever so slightly underbaked, so it’s super soft in the center yet crisp at the edges.
After several tweaks and rounds of testing, I nailed it. This is an easy, foolproof cookie recipe. They’ll be a huge hit at every party.
Sprinkle of Science
How to Make Soft & Chewy M&M Cookies
Keys to Soft, Chewy Cookies
- Weigh your flour: I highly recommend using a digital scale to measure your flour, to avoid hard, dry cookies that don’t spread. If you don’t have a scale, use the spoon and level method.
- Cornstarch: Don’t skip the cornstarch! It’s a tenderizing ingredient that helps create an ultra soft and chewy cookie.
- Don’t overbake: The cookies should still look slightly ‘wet’ in the center when you pull them from the oven. The residual heat of the pan will continue to cook the cookies to soft perfection.
Help! Why Are My Cookies Flat?
Butter temperature is KEY! If your butter gets too warm at any stage before baking your cookies, you’ll likely end up with flat, sad cookies. Start with butter at a cool room temperature, about 67°F. Then keep the dough around that temperature until it hits the oven.
In the image below, both cookies came from the same batch of dough, baked (separately) in the same oven at the same temperature for the same amount of time. The only difference? The cookie on the right came from the last bit of dough that sat on the counter for about half an hour before baking. In that time, the dough warmed up considerably, and the resulting cookies were much flatter.
What a difference, right?! If you’re baking multiple batches of cookies, pop the remaining dough in the fridge while they wait to enter the oven.
What Type of M&Ms Should I Use for Cookies?
I used regular-size M&Ms for a classic result in this recipe, but you could also use mini or even peanut M&Ms if you prefer. Of course, feel free to switch out for Christmas M&Ms, Easter M&Ms, 4th of July, Halloween – whatever the season, these cookies will look so cute with seasonal M&Ms mixed in!
The Secret to ULTRA Soft & Chewy Cookies
Chilling your dough makes cookies thicker and chewier!
This is an optional step if you have the time. You can bake a few cookies off immediately then chill the rest to improve flavor and texture. I swear by this technique! Check out my full article explaining the magic of chilling your cookie dough here.
My Favorite Cookie Tool: A Spring-Loaded Scoop!
Using a cookie scoop is one of the KEYS to beautiful, uniform, evenly shaped cookies quickly and easily. This will prevent many family fights over the biggest cookie.
I love using a 3-tablespoon size cookie scoop for these M&M Cookies, for the perfect large bakery-style size and texture.
Can I use a smaller scoop?
Yes. You can use a 1.5 tablespoon scoop and bake for 9-10 minutes instead, but note your cookies won’t be quite as soft and chewy in the center.
How to Fix Misshapen or Flat Cookies:
Not to fear. Simply grab a round biscuit or cookie cutter that’s larger than the diameter of your cookies, and swirl it around the edges of each cookie as soon as they come out of the oven. Don’t be afraid to swirl briskly, this will not only reshape the cookies into perfect circles but it’ll make them thicker, especially at the edges.
I like to use a round cookie cutter from a nested set. You can also use these for making biscuits, shaping cut-out sugar cookie dough, making doughnuts, and tons of other uses.
Watch me demonstrate this hack here baking cookies on The Today Show!
How to Store M&M Cookies
Soft and Chewy M&M Cookies can be stored in an airtight container at room temperature and will stay soft for up to 3 days. Store cookies with a tortilla or a slice of white bread to keep them soft for longer.
How to Freeze M&M Cookie Dough
- Place the unbaked cookie dough balls in a ziptop bag or other airtight container.
- Chill the dough for 24-72 hours in the fridge, allowing the dough to ‘marinate’ before freezing.
- Transfer the firm cookie dough to a labeled and dated airtight container and freeze for up to 6 weeks.
- To bake from frozen, drop the temperature to 325°F and bake longer, for 14-15 minutes.
- More tips and trick for how to freeze and bake cookie dough here.
More Delicious Cookie Recipes You’ll Love:
Soft & Chewy M&M Cookies
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Ingredients
- 3 cups (380 grams) all-purpose flour, measured correctly*
- 1 teaspoon cornstarch
- 1 teaspoon baking soda
- 1 1/4 teaspoons fine sea salt
- 2 sticks (227 grams) unsalted butter, at cool room temperature
- 1 1/4 cups (247 grams) lightly packed light brown sugar
- 1/2 cup (100 grams) granulated sugar
- 2 teaspoons vanilla extract
- 2 large eggs, at room temperature
- 1 egg yolk, at room temperature
- 1 (12 oz or 340 gram) bag M&M® candies
- 1/2 cup (85 grams) semisweet chocolate chips
Instructions
- If baking the cookie dough immediately, preheat the oven to 350ºF. Line baking sheets with parchment paper.
- In a medium bowl, whisk together the flour, cornstarch, baking soda, and salt.
- In a large mixing bowl, use an electric stand or hand mixer fitted with the paddle attachment to beat the butter, brown sugar, and granulated sugar on medium-high speed until light and fluffy, about 2 to 3 minutes. Scrape down the sides and bottom of the bowl before adding in the vanilla, eggs, and egg yolk, beating well after each addition, and scraping down the bowl as needed.
- Slowly beat in the flour mixture. Stir in the M&M candies and chocolate chips with a rubber spatula, reserving about 1/4 cup M&Ms to garnish each cookie dough ball.
- OPTIONAL CHILL TIME: For extra soft, chewy, and flavorful cookies, wrap dough balls in plastic wrap and refrigerate for at least 24 hours but no more than 72 hours. Bake directly from the fridge, adding a minute to the bake time if needed.
- Using a large spring-loaded cookie scoop, divide the dough into 3-tablespoon-sized balls and drop onto prepared baking sheets. Press a few of the saved M&M candies into the top of each ball of dough.
- Bake at 350°F for about 11 to 13 minutes, or until golden brown but still ever so slightly wet looking on top for soft cookies. Cool for 5 minutes before removing to a cooling rack to cool completely before serving for the chewiest texture.
- Cookies can be stored in an airtight container at room temperature for up to 3 days. Store with a tortilla or slice of white bread to keep soft.
Recipe Notes
The Ultimate Cookie Handbook
Learn the sweet SCIENCE of cookie baking in a fun, visual way to customize your own recipes frustration-free. Plus, my best 50+ homemade cookies!
This post was originally published in 2015 and has been updated with recipe improvements and new photos. Photos by Joanie Simon.
BEST. COOKIES. EVER. I have been scouring the world in search of a cookie that is perfectly chewy in the middle and crispy on the edge—this is that cookie. And it has m&ms, which I am definitely going to be using instead of plain choco chips from now on
Wonderful! So happy you loved this recipe!
I made these cookies for my family and while we all agreed they were good, they weren’t great, and not sure I will be making them again. They did bake up soft, as promised, but were really nothing special. I have to admit, I have been doing a lot of whole grain baking lately. I decided to try this recipe as an indulgence. Maybe our palates having gotten used to the flavors of whole grains and less sugars, or maybe we would have been better off with a different recipe.
Sorry to hear this wasn’t a favorite. Thanks for the feedback!
I’m getting ready to make the M&M cookies but noticed that the recipe calls for cornstarch but when preparing it does not say to mix it anywhere. So do I include it in the flour mixture or leave it out?
Thanks
Cindy
Hi Cynthia, so sorry about that! You would add the cornstarch with the flour, baking soda/powder, and salt. I just added that to the directions! Thanks so much for bringing that to our attention, enjoy your cookies! 🙂
I hate to leave a bad review. But these cookies were awful. Followed the recipe exactly as written. They were very, very greasy once baked. Took them to my In-Laws today for our Easter Celebration. Was so embarrassed when people started throwing them out. And then avoiding them all together. Very disappointing, especially after reading all the glowing reviews (which is why I made them to begin with). Would not recommend making this recipe. Definitely find a different one. Sorry.
Great recipe! It made big, soft & chewy cookies! I didn’t have time to chill for 24 hours but next time I definitely will. Some of them spread and some didn’t. Either way, I’m definitely making them again! Fir those asking, add the cornstarch to the dry ingredients.
I made this cookie last night and I follow all the steps.omg!! The result was so amazing!!! I love love love it!! Thank you for the recipe!
I would like to make these cookies however as one comment mentioned the cornstarch, its not stated in the method and I am not sure if to add or not add the cornstarch into the cookie mix. Please can you let me know.
This is my new go-to recipe for cookies. M&Ms worked beautifully and today I’m subbing chocolate chips. Thanks Tessa! These are such a hit when I bring them into work 🙂
I will be making these cookies soon! I’m confused as to when to add the cornstarch? 2 tsp. cornstarch are listed in the ingredients, but NO where is that particular ingredient mentioned in the instructions. Am I missing something? Please clarify. I need to make these soon for an event so need to know. THANKS!
One of my all-time favourite treats! These look amazing!
While at the store yesterday, I bought a large bag of m&m’s to bake cookies.
Your recipe looks perfect!
m&m cookies are one of my favorites! these look perfect!!