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Chunky Peanut Butter Cookies with M&M’s

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 Soft thick peanut butter cookies studded with coarse chopped peanuts and sweet chocolatey m and m’s. They are sure to satisfy your cravings and maybe even make disastrous days feel not quite so bad.

This recipe for chunky peanut butter cookies is kind of a happy accident (like the rest of my life). My boys love to snack on salted peanuts, but one day I bought plain peanuts by mistake. No one would touch them.  A few days later I discovered someone had found my M&M stash. They’d only left a few in the bottom of the share size bag.  So I took the misfit peanuts and M&M’s, adding them to my favorite peanut butter cookie recipe. Now this is my favorite way to make peanut butter cookies!

These cookies have over a cup of peanut butter and a half cup of peanuts, so you if you like my loaded peanut butter rice crispy treats, you’ll love these cookies. More peanut butter = better, right?
Chunky Peanut Butter Cookies

 I like putting the fork marks in the top of my cookies like traditional peanut butter cookies, but it’s totally up to you. These cookies don’t spread much at all, so if you don’t do the fork marks, you’ll want to flatten them out a bit. And lastly, these cookies do not brown much. Don’t wait until you see  a nice deep golden brown on the tops or they will be over-baked, becoming dry and crumbly.Chunky-Peanut-Butter-Cookies

Wait, don’t go without checking out these cookies too! 


Chunky Peanut Butter Cookies with M&M's

Yield: 24
Prep Time: 10 minutes
Cook Time: 12 minutes
Total Time: 22 minutes

Soft thick peanut butter cookies studded with coarse chopped peanuts and sweet chocolatey m and m’s.


  • 6 Tablespoons salted butter, Softened
  • 2/3 cup brown sugar
  • 1/4 cup granulated sugar
  • 1 1/3 cup peanut butter
  • 1 large egg
  • 1 egg yolk
  • 1 teaspoon vanilla extract
  • 1 1/2 cups unbleached all-purpose flour
  • 1/2 teaspoon baking powder
  • 1/2 cup plain peanuts, coarsely chopped
  • 1/2 cup M&M candies


  1. Preheat the oven to 350 degrees and prepare two baking sheets with either parchment paper or silicone baking mats. 
  2. In a medium sized mixing bowl, cream together the butter and the sugars until light and fluffy. Add the peanut butter, eggs, and vanilla, mixing well. Add the flour and baking powder mixing just until the dry ingredients are completely combined. Stir in the peanuts and M&M's by hand.
  3. Use a small cookie scoop or roll the dough into 1 1/4 inch balls.
  4. Gently press each cookie with the tines of a fork into a cross hatch design or use the bottom of a glass dipped in flour to flatten each cookie to about 1 cm tall.
  5. Bake at 350 degrees for 12- 13 minutes. After removing the pans from the oven, let the cookies rest for 3 minutes on the pan before transferring to a wire rack to cool completely. 
Nutrition Information:
Yield: 24 Serving Size: 24 Servings
Amount Per Serving: Calories: 215

Did you make this recipe?

Please leave a review or a photo! I'd love to hear your feedback!

Dan R

Monday 15th of January 2018

I'm new at baking so I think I did something wrong because my dough ended up being very dry and crumbly so it was nearly impossible to make balls that stuck together. Perhaps I over mixed the butter/sugar or the flour? Any suggestions?

Amy D

Saturday 27th of January 2018

Hi Dan,

I'm not sure exactly what might have happened when you made the recipe. These are a family favorite so I've made them tons of times and never had that happen. Based on your description it sounds like a wet ingredient might have been accidentally skipped or something even as seemly insignificant as using different sized eggs could lower the moisture content enough to make the dough crumbly. I'm sorry that they didn't turn out how you'd hoped. But trust me, these cookies are so worth it!

Megan @ MegUnprocessed

Wednesday 5th of April 2017

Kids of all ages love these.

Joan Lemon

Monday 3rd of April 2017

I do not see peanut butter in the ingredients. Just peanuts

Amy D

Monday 3rd of April 2017

Good heavens! I'm so glad that you noticed that and let me know Joan. What a silly mistake to have left out the main ingredient! It's fixed now.

Tina Dawson | Love is in my Tummy

Monday 3rd of April 2017

Oh no! After a day like that, you deserve to eat the whole batch hun! I hope things are ok now!

Amy D

Tuesday 4th of April 2017

Thanks Tina! The upside of the thing was that my storage area is so clean and organized now, but it was a bugger of mess to deal with. ;)

Brandi Crawford

Monday 3rd of April 2017

Peanut butter cookies are my favorite. These are the perfect size. I could eat them all.

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