Rachel Cooks

5 Ingredient M&M Peanut Butter Bars

Irresistible M&M Peanut Butter Bars with only 5 ingredients!

M&M Peanut Butter Bars

I’m not even kidding. There are FIVE ingredients in this recipe!

1 + 1 + 1 + 1 + 1 + oven = Delicious!

6 – 1 = Easy!

Peanut Butter + M&Ms = Happy!

Math lesson over. Moving on.

M&M Peanut Butter Bars

I saved that picture as “Oh-Yum.” Seems to me it is much more descriptive than “M&M-Peanut-Butter-Bars-3.” Tell me you don’t agree!

These bars are not only insanely easy to make, but they are so delicious. Soft, chewy, and super sweet. I’d recommend a big glass of milk and coffee. And small bites that savor each morsel. Notice I said small bites, not small bars.M&M PB Bar Photo

5 Ingredient M&M Peanut Butter Bars

Yield: 12-16 bars

Prep Time: 10 minutes

Cook Time: 40 minutes

Total Time: 50 minutes

Irresistible M&M Peanut Butter Bars with only 5 ingredients!


  • 3/4 cup peanut butter (I used creamy, but I bet chunky would be great too!)
  • 2 large eggs
  • 1 cup packed brown sugar
  • 2 cups all-purpose baking mix (Bisquick, for example)
  • 1 bag of M&Ms (I used regular--but now I'm thinking peanut butter M&Ms would be W-O-W)


  1. Preheat oven to 325 degrees Fahrenheit. Spray an 8-inch square pan with cooking spray.
  2. Combine peanut butter and eggs until well mixed and smooth.
  3. Add in brown sugar and stir until combined.
  4. Stir in baking mix until moistened (I used my hands because the spoon wasn't cutting it for me--it is a very thick batter).
  5. Fold in M&Ms. Again, using my hands worked best for this step. Not all of the M&Ms stuck in the batter (or perhaps it would be more accurate to call it dough). I just shoved them in when I put it all in the pan.
  6. Spread mixture in greased pan and bake for 35-40 minutes or until golden brown.

Adapted from What Megan's Making


M&M PB Bars

Verdict: I think I covered this already, but if you weren’t listening–they are delicious! VERY sweet though, in all seriousness, they are best in moderation.
Husband’s take: He didn’t have any. He’s not the biggest fan of peanut butter desserts. Crazzzzzy. I’m quite sure he was silently cursing me for not making his favorite treat.
1-year-old daughter’s take: None of these for her! Sorry kiddo. Now, before you start thinking that I ate the whole pan–I brought these to the kid’s birthday party to share with family and friends.
Changes I would make: None!
Difficulty: Five ingredients folks. Should we review the math lesson? This recipe is EASY!

Peanut Butter M&M Bars

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I love to see what you're creating!

82 Responses to “5 Ingredient M&M Peanut Butter Bars”

  1. Ashley@BakerbyNature — September 27, 2011 at 7:17 am

    The 8 year old in me just got very excited; I use to eat these everyday as a kid. Yumm!!!

  2. Christina @ This Woman Cooks! — September 27, 2011 at 7:44 am

    Thanks for the math lesson. πŸ™‚ Those M&M’s are popping out of your photos! I want, I want, I want!

  3. Erin @ Dinners, Dishes and Desserts — September 27, 2011 at 8:05 am

    Yes Please!! I think I could down that pan in day – it looks so good! Can’t wait to try these, and I will be trying your PB M&M suggestion!

  4. Tara @ Chip Chip Hooray — September 27, 2011 at 8:51 am

    These look incredible–it seems too good to be true that I only need five things to make them! Or perhaps just too dangerous… πŸ™‚

  5. Mal @ The Chic Geek — September 27, 2011 at 9:24 am

    Simple and delicious looking, great recipe!

  6. Erin — September 27, 2011 at 9:53 am

    Wow I cannot believe these have bisquick in them. I would’ve never guessed. And I am totally with you on the peanut butter M&Ms. I just so happen to have bought a bag recently… O:-)

  7. Lori @ RecipeGirl — September 27, 2011 at 10:08 am

    LOVE these! Great, easy dessert πŸ™‚

  8. Melissa@IWasBornToCook — September 27, 2011 at 10:40 am

    These look great! Love the ease.

  9. Deborah — September 27, 2011 at 10:44 am

    Want to send some my way? πŸ™‚

    • Rachel — September 27th, 2011 @ 12:11 pm

      If there were any left, I would be more than happy to get them out of my house! πŸ˜‰

  10. Liz @ Southern Charm — September 27, 2011 at 11:28 am

    Wow! This looks amazing and is so simple. Love!

  11. kita — September 27, 2011 at 12:43 pm

    Im 5 ingredient sold! These look awesome!

  12. Rachel @ Baked by Rachel — September 27, 2011 at 2:27 pm

    using the traditional m&ms makes them so bright and colorful! Love πŸ™‚

  13. Chris @ TheKeenanCookBook — September 27, 2011 at 3:57 pm

    You can’t go wrong with this math. And I agree with Rachel, the M&M’s add so much color and fun. Wish there were some left for you to share with us!

  14. Aggie — September 27, 2011 at 7:05 pm

    I can handle 5 recipes when it comes to baking!! Yum!

  15. Nancy — September 27, 2011 at 7:58 pm

    And I have to say…they were delicious! I was at the birthday party and I passed on the cake but couldn’t pass these by–mmmmmm.

  16. Vicki Bensinger — September 27, 2011 at 8:12 pm

    You had me with the title. It could have had 20 ingredients. That’s right 11+9=20 or 30-10=20. It wouldn’t have mattered. M&M’s AND Peanut Butter! YUM!

  17. Krista {Budget Gourmet Mom} — September 27, 2011 at 11:36 pm

    How do I love thee…let me count the ways! Okay, no more math but I am going to have to make these!

  18. Sylvie @ Gourmande in the Kitchen — September 30, 2011 at 7:16 pm

    YUM indeed! Those look dangerously good.

  19. Emily @ Life on Food — October 2, 2011 at 4:26 pm

    I am going to the kitchen now. I made cookies not to long ago like this but the M&Ms up the bounty big time. Love it!

  20. carly {carlyklock} — October 3, 2011 at 9:41 pm

    These look unbelievable. I’m with you – just as excited about a 5 ingredient recipe! Wahoooooooo!

    • Rachel — October 4th, 2011 @ 8:04 am

      They ARE unbelievable! Let me know if you try them!

  21. katie — October 14, 2011 at 9:36 am

    My mouth is salivating just thinking about these. Stop posting such great recipes! I feel fat already! lol.

  22. Rachel — November 20, 2011 at 6:30 pm

    I made these with flour and peanut butter M&M!s and they are amazing!!!! Thank you for sharing the recipe!

    • Rachel — November 21st, 2011 @ 8:14 am

      Glad you liked them! Thanks for commenting πŸ™‚

  23. Lori — November 28, 2011 at 10:12 pm

    What if you substituted the peanut butter for nutella?

    • Rachel — November 29th, 2011 @ 11:00 am

      Hmm–I don’t see why that wouldn’t work. I haven’t tried it, so no guarantees, but I definitely think it is worth a shot, sounds amazing! Let me know how it goes if you try it.

  24. Jody G — November 29, 2011 at 1:15 pm

    What size bag of M&Ms did you use? πŸ™‚ My mother gave me a color assortment plastic box thing full of M&Ms so trying to figure out about how many!

    • Rachel — November 29th, 2011 @ 1:33 pm

      I used the medium sized bag–I believe it is in the vicinity of 12oz.

  25. Ally S — December 1, 2011 at 4:24 pm

    I JUST made these and they are delish! I used the mini milk chocolate m&m’s and just about a cup of them. So yummy and easy to make! Thanks!

    • Rachel — December 1st, 2011 @ 8:22 pm

      Hooray! Glad you liked them, thank you so much for coming back to tell me πŸ™‚

  26. annette anderson — December 23, 2011 at 2:18 pm

    These are wonderful! So easy to make. I just mixed up a batch for a Christmas dinner tonight. Finally a different, and easy recipe!

    • Rachel — December 24th, 2011 @ 10:57 am

      I’m so glad you enjoyed them! Merry Christmas! πŸ™‚

  27. Kate — January 24, 2012 at 1:01 am

    Can the “all purpose baking mix” be the just-add-water kind? What do you recommend? These look fantastic!

    • Rachel — January 25th, 2012 @ 9:57 pm

      Probably! Definitely worth a shot!

  28. Sharee — February 11, 2012 at 12:00 am

    I am at lost for words. I LOVE these. Right look, right texture, and *definitely right flavor. To say these are a keeper would be an understatement. Thanks for the share! πŸ™‚

    • Rachel — February 11th, 2012 @ 9:29 am

      Thanks for the nice comment! They were delicious!

  29. Julie — February 26, 2012 at 6:50 pm

    These are amazing!!! I made them with peanut butter m&m’s this time, soooo good! Next time I am going to try regular m&m’s and add some chopped peanuts as well πŸ™‚
    Thanks for the recipe!!

    • Rachel — February 26th, 2012 @ 8:18 pm

      Mmmmm, peanut butter m&ms. Peanuts sound great too, or just chunky peanut butter. Glad you enjoyed!

  30. Marina — March 5, 2012 at 2:12 pm

    I don’t have Bisquick but I do I have Krusteaz pancake mix, could I use that? Can’t wait to try these!

    • Rachel — March 5th, 2012 @ 3:09 pm

      Hmm, I’m really not sure! I don’t think they have quite the same ingredients so it might not work. Worth a shot though–let me know if you do end up trying it!

      • Marina — March 11th, 2012 @ 5:23 pm

        I ended up getting Bisquick with a coupon πŸ™‚ These were DELICIOUS! Mine were soft on the inside which I love!

  31. Lelah — March 7, 2012 at 9:34 pm

    Just made these and they were amazing. Thank you so much for the recipe!!!

  32. Sharie — March 11, 2012 at 8:00 pm

    Saw these on pinterest. We love easy, delicious recipes. This was so good and easy. I do think that next time we will use fewer m&m’s and will try the peanut butter m&m’s. Great recipe! Everyone should try at least once!

    • Rachel — March 12th, 2012 @ 7:54 am

      Thank you Sharie! Peanut M&Ms would be GREAT in these!

  33. Nora — March 28, 2012 at 9:56 pm

    Can I use just regular flour?

    • Rachel — March 29th, 2012 @ 7:56 am

      No, but I searched online and found that you can substitute for Bisquick using this formula (found on Wikipedia):

      2 cups flour
      3 teaspoons baking powder
      1 teaspoon salt
      2 Tablespoons oil or melted butter

      Make it a little more than 5 ingredients, but at least you won’t have to make a special trip to the store! Let me know how it works out!

      • Sarah — July 12th, 2012 @ 9:59 am

        I tried to make my own Bisquick to make this recipe because I live in South Korea and they don’t have Bisquick. It didn’t work well. It was too dry and crumbly. Tasted okay, but not as good as everyone was raving about. Someday when I live in the US again, I’ll have to try these again, but I don’t recommend making the Bisquick yourself!

        • Rachel — July 12th, 2012 @ 12:21 pm

          Shoot! Sorry to hear that!

  34. Nora — March 29, 2012 at 12:40 pm

    Thank you I will πŸ™‚

  35. Anika — April 5, 2012 at 1:15 pm

    OMW!!! These are SO super easy and quick to make!! Made some as a surprise for my husband and I hope he likes them!! I am also making some for Easter with Easter colored M&M’s πŸ™‚

    • Rachel — April 5th, 2012 @ 3:36 pm

      I’m so glad you enjoyed them! I love the idea of Easter M&Ms! Fun πŸ™‚

  36. Erin — June 18, 2012 at 10:42 pm

    I tried with the gluten-free variety of Bisquick and they are delicious! The bars are a little crumbly (but still not cooled from the oven); I am hoping they firm up by tomorrow but even if they don’t ( and I have to add extra liquid next go round), the taste will carry them through! thank you!

    • Rachel — June 19th, 2012 @ 7:04 am

      Awesome! Thanks for coming back to let me know!

  37. Jocie — June 23, 2012 at 9:11 pm

    Just found these not too long ago on pinterest and I have been thinking of them ever since! I finally had the perfect opportunity to make them as my in laws are coming tomorrow! They’re so easy to make and they look so delicious baking in the oven! My suggestion- use M&M minis! I just love the crunch and the bite after bite full of chocolate! I’m sure the PB M&M’s would be great too, but the minis are so irresistible! Thanks so much for the recipe πŸ™‚

    • Rachel — June 25th, 2012 @ 3:24 pm

      Glad you liked them! Thanks for coming back to let me know πŸ™‚

  38. Natasha — June 28, 2012 at 1:54 am

    Loved how easy this looks! Do you need an electric mixer or does a plain wooden spoon work? Thanks!

    • Rachel — June 28th, 2012 @ 8:14 am

      The dough/batter is SO thick that I don’t think an electric mixer would even work. A wooden spoon + your hands will be your best bet! πŸ™‚

      • Natasha — July 17th, 2012 @ 2:42 am

        Just finished making these and holy moly, they are fabulous! Super sweet though, but taste sooo good! Thank you so much for posting this recipe!

  39. Tina — August 21, 2012 at 3:40 pm

    Just tried making these using pancake/waffle mix. Theyre in the oven now. Also only had a tiny single sized bag of M&M’s so added a handful of chocolate chips. Hoping pancake mix works.

    • Rachel — August 22nd, 2012 @ 8:25 am

      Hmm…not sure if it would work or not. Did they turn out?

  40. Cassie — October 14, 2012 at 11:47 pm

    So I had to make these… Like tonight at 10:45 pm and let me tell you- AH-MAZ-ING!!! I promised my 3 year old I’d make some and he could have them tomorrow…. I am having trouble with stopping at just one!! Trying out some of your other recipes soon! Oh I made these with gluten free bisquick as I have celiac disease- never had them a different way but great this way. Do you think almond butter would work as well??

    • Rachel — October 15th, 2012 @ 8:11 am

      So glad you liked them, and I’m happy to hear they turned out well with GF bisquick! I think almond butter would definitely work well. Worth a shot!

  41. kayla — March 29, 2013 at 3:20 pm

    Made these for my daughter’s easter party at school today and they were a HUGE hit!! They are spool good πŸ™‚

    • Rachel Gurk — March 29th, 2013 @ 9:26 pm

      So glad everyone liked them, Kayla!

      • kayla — March 31st, 2013 @ 12:21 pm

        πŸ™‚ and that was supposed to say sooo good…No spool haha…spell check for ya!

  42. Food, Faith, and Other Fabulous Finds — October 3, 2013 at 10:16 pm

    These are so easy and SO delicious! Thank you for sharing them. (I really love your blog!)

  43. Chastity — November 20, 2013 at 12:07 pm

    I made these in a 9×13 pan and they turned out great! Just a little thinner than they would be in the 9×9. So good!

  44. jan — December 21, 2013 at 10:15 pm

    When I cut through these, They seem really raw in the middle. Are they supposed to be that way ?? Left them in for exact time. Looked fully baked on outside. Shame to throw whole batch out.

    • Rachel Gurk — December 22nd, 2013 @ 8:50 am

      Hmm — have you checked your oven temp with a thermometer? These are very moist but they should be cooked all the way through.

  45. Kris Bennett — May 6, 2014 at 11:59 pm

    I love the recipe but I can a question about the baking mix? Can I use regular all-purpose flour as well or is it just baking mix like pancake batter?

  46. lisa g. — August 25, 2014 at 11:52 pm

    Does the dough come together cohesively or is it crumbly? I want to know if the baked cookie bar is moist? Thx they look yummy.

    • Rachel Gurk — August 26th, 2014 @ 2:42 pm

      A little crumbly but as long as you don’t over-bake they’ll be nice and moist. Enjoy!

  47. marie — April 27, 2015 at 4:40 pm

    If I use a 9×13 pan, how long do you think I should bake them for?

    • Rachel Gurk — April 28th, 2015 @ 9:27 pm

      I’ve never baked them in a 9×13 but I’d decrease baking time by probably 10 minutes and check on them to see if they are golden brown. You want don’t want to overbake them.


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