M&M’S Chocolate Chip Cookie Bars

The only thing I may possibly like better than soft and chewy M&M’S® cookies are cookie bars.

Bars are my favorite kitchen shortcut because they’re so fast and easy to make.

M&M’S Chocolate Chip Cookie Bars - Soft buttery bars loaded with M&M’S and chocolate chips are a guaranteed hit!! Fast, easy, foolproof, no mixer recipe that's so much simpler than making cookies!!

No dough to chill or individual cookies to form.

For these very soft, slightly chewy, buttery bars that are loaded with M&M’S and chocolate chips, I called upon my trusty blondie base.

MY OTHER RECIPES


M&M’S Chocolate Chip Cookie Bars - Soft buttery bars loaded with M&M’S and chocolate chips are a guaranteed hit!! Fast, easy, foolproof, no mixer recipe that's so much simpler than making cookies!!

When I want an easy, fuss-free, one-bowl, no-mixer recipe that I know everyone will love, it’s my go-to . With 25+ versions and counting, it never lets me down.

It’s an easy recipe to memorize because everything is ‘one’. In the 1 bowl used, melt 1 stick of butter, stir in 1 egg, 1 cup of brown sugar, 1 tablespoon vanilla, and 1 cup flour.

M&M’S Chocolate Chip Cookie Bars - Soft buttery bars loaded with M&M’S and chocolate chips are a guaranteed hit!! Fast, easy, foolproof, no mixer recipe that's so much simpler than making cookies!!

I stirred in 1 cup of the new Crispy M&M’S, but anything from Dark to Pretzel to Peanut Butter M&M’S would be wonderful. M&M’S just launched a new Pinterest page where you can check out new recipes for baking inspiration.

I loved the texture contrast of the soft bars, with gooey chocolate chips, and the Crispy M&M’S that stay crispy even after being baked. My family’s eyes lit up when they saw these and they sure didn’t last long.

M&M’S Chocolate Chip Cookie Bars - Soft buttery bars loaded with M&M’S and chocolate chips are a guaranteed hit!! Fast, easy, foolproof, no mixer recipe that's so much simpler than making cookies!!

Print Recipe

M&M’S Chocolate Chip Cookie Bars

Bars are my favorite kitchen shortcut because they’re so fast and easy to make. No dough to chill or individual cookies to form. For these very soft, slightly chewy, buttery bars that are loaded with M&M’S and chocolate chips, I called upon my trusty blondie base. When I want an easy, fuss-free, one-bowl, no-mixer recipe that I know everyone will love, it’s my go-to . With 25+ versions and counting, it never lets me down. It’s an easy recipe to memorize because everything is ‘one’. In the 1 bowl used, melt 1 stick of butter, stir in 1 egg, 1 cup of brown sugar, 1 tablespoon vanilla, and 1 cup flour. I stirred in 1 cup of the new Crispy M&M’S, but use your favorites. I loved the texture contrast of the soft bars, gooey chocolate chips, and the crispy M&M’S.

Yield: one 8x8 pan, 9 to 12 generous squares

Prep Time: 5 minutes

Cook Time: about 25 to 28 minutes

Total Time: about 90 minutes, for cooling

Ingredients:

  • 1/2 cup unsalted butter (1 stick), melted
  • 1 large egg
  • 1 cup light brown sugar, packed
  • 1 tablespoon vanilla extract
  • 1 cup all-purpose flour
  • 1/2 teaspoon salt, or to taste
  • 1 cup Crispy M&M’S (or your favorite M&M'S like DarkPretzelPeanut Butter, etc.), plus more for sprinkling
  • 3/4 cup semi-sweet chocolate chips, plus more for sprinkling

Directions:

  1. Preheat oven to 350F. Line an 8-by-8-inch baking pan with aluminum foil, spray with cooking spray; set aside.
  2. In a large, microwave-safe bowl melt the butter, about 1 minute on high power.
  3. Wait momentarily before adding the egg so you don't scramble it. Add the egg, brown sugar, vanilla, and whisk until smooth.
  4. Add the flour, salt, and stir until just combined, don't overmix.
  5. Stir in the M&M'S and chocolate chips.
  6. Turn batter out into prepared pan, smoothing the top lightly with a spatula.
  7. If desired, evenly sprinkle about 1 tablespoon each of M&M'S and chocolate chips for an extra visual pop, tapping them down lightly with your fingertip.
  8. Bake for about 25 to 28 minutes (I baked 26 minutes), or until done. A toothpick inserted in the center should come out clean, or with a few moist crumbs, but no batter. Bars firm up as they cool. Allow bars to cool in pan for at least 1 hour before slicing and serving. Bars will keep airtight at room temperature for up to 1 week, or in the freezer for up to 6 months.
Only Eats

Related Recipes

Loaded M&M Oreo Cookie Bars – Stuffed to the max with M&Ms and Oreos! Easy, no-mixer recipe that’s ready in 30 minutes. Always a hit! On the cover of Taste of Home Magazine and pinned 650K+ times!

Loaded M&M Oreo Cookie Bars - Stuffed to the max with M&Ms and Oreos! Easy, no-mixer recipe that's ready in 30 minutes. Always a hit at parties!

Triple Peanut Butter Monster Cookie Bars – Peanut butter is use 3 different ways and baked into bars. Great for pantry odds-and-ends cleanout!

Triple Peanut Butter Monster Cookie Bars - Easy One-Bowl Recipe at averiecooks.com

Homemade Little Debbie Cosmic Brownies – Some of the best brownies I’ve ever made and much more decadent than storebought Cosmic Brownies!

Homemade Little Debbie Cosmic Brownies - Recipe at averiecooks.com

Frozen Chocolate Pudding and Wafer Cake (No-Bake, 3 ingredients) – An easy icebox cake that’s perfect for summer events!

The Best Soft and Chewy M&M’S Cookies – Big, bakery-style cookies you can make at home that are better than the bakery’s! An easy recipe for the classic cookies everyone loves!

The Best Soft and Chewy M&M'S Cookies - Big, bakery-style cookies you can make at home that are BETTER than the bakery's! An easy recipe for the classic cookies everyone loves!!

Soft and Chewy M&M Chocolate Chip Cookies – If you’re looking for a new M&M cookie recipe, this is the one! Soft, buttery, and irresistible!

Soft and Chewy M&M Chocolate Chip Cookies - If you're looking for a new M&M cookie recipe, this is THE ONE! Soft, buttery, and irresistible!!

Soft M&M Chocolate Chip Cookies – Soft, chewy, thick, and people love these big cookies loaded with M&Ms and chocolate!

Soft M&M Chocolate Chip Cookies - The softest, thickest, best M&M cookies ever! People love these big cookies loaded with M&Ms & chocolate!

Soft and Chewy M&Ms Cookies – Soft, melt-in-your mouth buttery cookies stuffed with M&Ms!

Soft and Chewy M&Ms Cookies averiecooks.com

Triple Peanut Butter Cookie Pie – This fast & easy cookie pie has peanut butter worked in 3 different ways. If you’re a peanut butter lover, this pie is for you!

Triple Peanut Butter Cookie Pie - This fast & easy cookie pie has peanut butter worked in 3 different ways. If you're a peanut butter lover, this pie is for you!

Loaded Soft and Chewy M&M Cookie Pie – If you like M&M cookies, you’ll love this biggie version! Super easy and always a big hit!

Loaded Soft and Chewy M&M Cookie Pie - If you like M&M cookies, you'll love this biggie version! Super easy & always a big hit!

 Post is brought to you by M&M’S. The recipe, images, text, and opinions expressed are my own.

55 comments

  1. YUM! I haven’t had m&ms for so long, and I think I know exactly what I’ll be picking up in the grocery store line tomorrow, because these bars (and all their variations) look MOUTHwatering. What exactly is a crispy m&m? does it have wafer on the inside?

  2. Why it looks so mouthwatering! It makes me hungry, looks veeery delicious!

  3. M&Ms are totally my weakness. I love that these are blondie-esk cookie bars. As much I as love chocolate, I’d rather enjoy it with a contrasting taste like vanilla. I’m going to make these very soon, Averie.

  4. I’ve had the pretzel M&M’s but not the crispy ones. At first glance the inside of them reminded me of malted milk balls. Love the combo of crispy candy with chocolate chips in a blondie…these are giving me a craving!!

  5. Whenever you put M & Ms in anything, that’s just pure crack. Not that I know. But I can’t stop eating! And these are making me seriously crave blondies right now. I love your blondie recipe, Averie! I’ve made a lot of your adaptations from that base, and they’re all amazing!

  6. These are so easy to make!! I will definitely be trying out the other versions too! Love how there is no wait time in this recipe (butter to soften or dough to chill). Finally you can bake and eat cookies now!! 

  7. Other than the fact that these look so delicious, I love how easy they are! That makes it the perfect dessert!

  8. While I’m a more traditionalist with y chocolate chip cookies, by husband LOVES cookie bars AND m&m chocolate chip cookies, so I;m thinking he needs a batch of these soon :]

  9. These look amazingly delicious!

    Paige
    http://thehappyflammily.com

  10. Um, YUM! I love M&M’s and love that you used the new/old Crispy ones. Those were my favorite as a kid and I’m so glad they’re back. Hello, nostalgia! 

  11. I LOVE m&m desserts! These look fabulous! I love peanut butter m&ms… I think I would use those too!

  12. I read lots of blogs but have never made a recipe from any until now. These looked amazing and I was inspired as the recipe was simple and I had the ingredients on hand. They came out awesome!!!!!! Thanks! 

    • Thanks for trying the recipe mere HOURS after I posted it!! That’s wonderful! And that my blog is the first blog you’ve ever made a recipe from and were inspired to do so after seeing this post!

      I’m glad it came out great for you!

  13. M&M anything is an instant hit with me – they are my ultimate favourite candy! I wish I had one of these cookie bars right now Averie, they look amazing

  14. I’m in love, seriously. What a great recipe too – easy to remember. And I have a package of those M&Ms just waiting to be used!

  15. Is there such a thing as a bad M&M? If so, I haven’t met it … and imbedded in a bar cookie sounds like the perfect way to try it! Bar cookies rock.

  16. So, so in love with these cookie bars!! You started a major craving…These are definitely happening this weekend!! :) I think I’ll hide the pan, so my family won’t steal all of them first too! 

  17. I always love coming and checking out your recipes. I feel comforted just looking at these m&m blondies :)

  18. These cookie bars are so amazingly fun to look at & I bet even better to taste!!

  19. Oh serendipity! I saw this at 5:15 this morning. Yum! I should make these some day. Flash forward 1 hour as I turn into the candy aisle as I grocery shop…bam! Pastel/Easter m&m on sale $1.69 a bag (not the $3.69)…oh yes! Thank you universe for speaking so loudly. They’re in the oven and I have 25 minutes of sun time (it’s going to be 70 today…yay). Thanks for the recipe and bringing all the pieces together today! *grin*

    • Thanks for trying the recipe with your very serendipitous pastel candies that were on sale that you scored (love those kind of finds!!)

      Enjoy the bars!

  20. OMG! I LOVE THIS SO MUCH! THE PICTURES ARE REALLY MAKING ME RECONSIDER MY DIET!

  21. I love everything about these bars! I didn’t realize I needed them until now. It’s like you read my mind and combined my favorites in a way that is easier than making individual cookies! I’m both thrilled and freaked out at the same time.☺

  22. Looks so good! You can’t deny, M&Ms are so much more exciting to look at in cookies, and taste even better! Thanks for all the great M&M ideas!

  23. Every single shot above made my jaw drop further. I want to try every single cookie, brownie and “cookie pie” on this page. Time to buy some ingredients I think.

  24. Averie, you’ve done it again! My family thinks I’m a rock star pastry chef because of you! :) It’s rare that a bag of M&Ms lasts long enough at my house to actually permit cookie-making, so that in itself was something. I love this blondie base. I used the regular candies, and these turned out gooey and YUM. The 8X8 pan was gone in a day–my 4 boys (1 adult and 3 preteens) fought over the last piece. Thanks, Averie.

    • Thanks for trying the recipe and I’m glad it came out great for you and I’m actually surprised that it lasted 4 days with 4 teen boys in the house! That’s actually impressive :) And glad you look like a rock star pastry chef!!

  25. Just made these bars and they were pretty chocolatey so it tasted okay, but mine burnt. :( 
    I baked it for 26 minutes and 350 degrees, because first when I checked at 24 mins it didn’t look done. I didn’t melt the butter so that it was completely liquify/clear-ish color, I’d say I melted it for about 30 seconds. Could this be why? Also, it tasted a little too bready-like/like dough or flour? Do you know why this happened? I followed the recipe as is..maybe I over mixed the flour? I’d like to try this again and hopefully it will go better next time!

    • All ovens, pan, climates, etc. vary and so you have to really watch your item in your oven and conditions.

      Next, you didn’t melt the butter fully and YES that will absolutely impact results in this recipe! It will cause the batter to be drier in general, and cook quicker, and likely this is why it tasted a bit flour-ey. I have made this blondie base recipe hundreds (not exaggerating) of times over the years with a million different adaptations and it’s a keeper and easy, but you just need to follow the recipe fully next time and you’ll be all set.

      Also don’t hard-pack and use a heavy hand with flour; most people over-measure their flour. Just something to keep in mind for the future.

  26. I had a problem getting these to bake,  I had to cook them for 45 minutes at 350.  They were not light but very dense and greasy.  Maybe the foil was a problem with the spray?  I have never used that combination baking anything before.  

    • Are you sure your oven is working totally normally and is calibrated? Baking times do vary but 45 minutes is a long time for this recipe. I’ve made this blondie base hundreds of times over the years https://www.averiecooks.com/tag/blondies-2 and know it’s a very solid base. Probably the most well-tested base I have on my site. So….maybe for you, don’t line with foil? I do it b/c it saves tons of time with cleanup and you can just lift the whole thing out using the foil so for me it’s great. I have a feeling though that something is going on with your oven or possibly you under measured the flour? They are a dense bar and buttery, but not greasy. Thanks for trying the recipe and I wish I could pinpoint where the trouble came in for you.

  27. These look delicious but I need to make them for a crowd. Do you think I could double the recipe to an 8×13 pan?

    Thank you

  28. I doubled the recipe and put them in a 13×9 pan and they came out great. In fact I made 3 pans!

  29. The guys I work with love cookie days and with summer being busy I love the shortcut of bars over cookies. I was in the mood for something “M&M-ish” and having such success with your snickerdoodle bars that put this recipe on the top of the list for me.  Needing to make enough for 20 guys I often have to make 2 batches, so I was really happy to read through the comments to find success with doubling the batch. 
    While I rarely comment, I had to tell you what a huge hit these were! I doubled the batch, used a 9×13″ pan and baked for 28 min and ended up with 32 squares. Complete perfection! Thank you so much. You’ve made baking fun for me (and for my taste testers)!

    • Thanks for trying the recipe and I’m glad it came out great for you with doubling the recipe and glad the guys at work loved them! Thanks for the wonderful compliments – I appreciate that!

  30. Hi, im waiting to see how mine turn out!! i used pumpkin spice latte m&ms and just kinda stirred anything together and made sure all the lumps were out :)

  31. Shayla Maisonneuve Reply

    I went to the grocery store to get some mini MnM’s just the regular ones because Im boring like that ;) and they were $5.99! HOLY, so instead I bought mini reeces pieces ($3.99) and Im pretty excited about it! They are in the oven as I type!

  32. I would like to make these bars for Christmas but due to a nut allergy do you think Christmas coloured smarties would work?  I’ve never baked with smarties before and I’m not sure if they melt or not.

    • I haven’t ever baked with Smarties so not sure how they change when heated. If you use M&M’s that aren’t the peanut, almond, etc versions and just stick to the plain ones…if that works for your allergy then I’d do that.

  33. Hi Averie, I made these last night. They were so good. Best blondie base-period!! :D

  34. Can these be made into cookies instead of bars? If so, how would I do that differently?

    • I have many recipes for M&M cookies. Google ‘averie cooks M&M cookies’ and about 6 different versions will pop up. Enjoy!

      This recipe is not intended to be made as cookies.

  35. I made these for the 4th of July with red, white and blue M & M’s and they were great. The recipe was exactly what I was looking for ! Thank you.

  36. Can’t wait to try this recipe! Have a church bake sale coming up and my son has a work picnic. I see that someone else successfully doubled the recipe in a 9×13 pan and baked for a little longer. Does it matter if it’s glass or metal? Also, if you bake two pans in the oven at the same time, do you need to increase baking time? Thank you so much!

    • Does it matter if it’s glass or metal? = yes, I bake in metal and recipe is written based on that with regard to baking time.

      if you bake two pans in the oven at the same time, do you need to increase baking time? = possibly slightly but I’m not sure because I haven’t tried it that way.

Leave a Reply

Your email address will not be published. Required fields are marked *