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Peanut Butter M&M Skillet Cookie

Thanks for sharing!

A chewy peanut butter cookie studded with plenty of peanut butter M&M’s and baked in a skillet. This peanut butter M&M skillet cookie is just waiting for you to take a slice!

close up of peanut butter skillet cookie with peanut butter M&Ms baked on top

Chewy peanut butter M&M cookies are always a welcome treat at our house. Baking them into a big skillet cookie makes the process even easier and gives you lots of the best chewy center parts.  It is peanut butter and chocolate cookie goodness at its finest!

This post was originally from 2015.  I thought it was high time to make this bad boy again.

When I pulled up the post, the pictures of Little Dude melted my heart.  He was always been such a helper.  

I couldn’t bare to take those pictures out. He is just too dang sweet. But I did update the pictures of the cookie itself.

Mixing bowl full of peanut butter cookie dough and peanut butter m&ms.

I will let you read the original post and see the fun pictures of little dude from when he was an itty bitty sous chef.  

I don’t know if you guys know this or not, but I have a sweet tooth.  I thought I might go ahead and fess up to it!  

I also love all things chocolate and peanut butter.  I mean, that does go without saying right?  So I just couldn’t help myself when I saw a bag of peanut butter M&Ms on sale at the store.  

little dude stirring melted butter and peanut butter in a glass mixing bowl.

 I had been wanting to make some cookies, but sometimes cookies take too long!  You have to wait for the butter to come to room temperature, make the dough, put it back in the fridge to firm up, scoop the cookies, bake the cookies.  

 I am a little impatient sometimes (keep your comments to yourself, MiMi!) so I need to have a shortcut.

little dude pressing cookie dough into cast iron skillet.

A skillet cookie solves some of the time issues.  You can use melted butter and can bake it right away because you don’t have to worry about the cookies spreading too far.  

Plus it just takes one trip to the oven, no worry about doing a sheet at a time! 

Little dude pouring extra m&ms on top of skillet cookie.

 The melted butter also made it much easier for Little Dude to stir as well.  So it was win, win.

He has so much fun helping in the kitchen.  For this project he got to crack the eggs, dump the ingredients in the bowl, and stir them up.

He also enjoyed pushing the dough  into the skillet and spreading it around.  But his favorite part was putting some more M&M’s on top.  

Our cookie might have been missing an M&M or two, but it was still delicious. 

cookie dough pressed into cast iron skillet with extra candies on top

The cookie slices best if you wait a while first.  Little Dude and I couldn’t wait, so we had crumbly but delicious first slices.     

My husband and a friend were installing some siding for a couple of friends, so Little Dude and I delivered some pieces to them.  The extra wait time made those pieces come out much better.  

slice of peanut butter m&m skillet cookie on plate.

We also loaded up some pieces in the wagon and walked them over to my brothers’ house.  Our cookie delivery service did not get any complaints!   

This cookie is everything you would want from a skillet cookie.  It is thick and soft in the middle with just a little bit of crunch around the edge.  But don’t take it from, try one yourself!

More Skillet Cookie and Cookie Cake Recipes:

Yield: 12 Servings

Peanut Butter M&M Skillet Cookie

Cast iron skillet filled with peanut butter cookie topped with candy coated chocolates.

A chewy peanut butter cookie studded with plenty of peanut butter M&M’s and baked in a skillet. This peanut butter M&M skillet cookie is just waiting for you to take a slice!

Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes


  • 1/2 cup butter
  • 1/2 cup peanut butter
  • 3/4 cup packed brown sugar
  • 1/2 cup granulated sugar
  • 1 large egg
  • 2 teaspoons vanilla
  • 1 teaspoon salt
  • 3 Tablespoons milk powder
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon baking soda
  • 1 cup all-purpose flour
  • 3/4 cup whole wheat flour (you can use all all-purpose)
  • 1 bag peanut butter M&M’s


  1. Preheat oven to 350°F
  2. Melt butter in mixing bowl, then stir in peanut butter.
  3. Mix in brown sugar and sugar and stir well.
  4. Add in egg and vanilla and stir until completely uniform.
  5. Stir in the salt, milk powder, baking powder and baking soda until really well mixed.
  6. Stir in flours until just combined. Fold in most of the M&M’s, reserving some to place on top.
  7. Press into a 8 inch skillet or cake pan. Arrange remaining candies on the top of the cookie.
  8. Bake for 30-35 minutes.
  9. (This is the hardest part!) Wait for at least 45 minutes before cutting and serving. If you jump the gun, it will still taste great but will not hold its shape.

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Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 300Total Fat: 15gSaturated Fat: 7gTrans Fat: 0gUnsaturated Fat: 6gCholesterol: 36mgSodium: 355mgCarbohydrates: 38gFiber: 2gSugar: 22gProtein: 6g

All nutritional information is estimated and will depend on the exact ingredients you use.

Did you make this recipe?

I'd love to see it! Share a picture on Instagram or Pinterest and tag me @carleecooks to let me know how it went!

A chewy peanut butter cookie studded with plenty of peanut butter M&M's and baked in a skillet. This peanut butter M&M skillet cookie is just waiting for you to take a slice!

Thanks for sharing!


Monday 8th of July 2019

That looks so yummy and you have such an adorable helper! Pinned.


Thursday 18th of July 2019

He's a keeper for sure!

Andrea Nine

Wednesday 26th of June 2019

A cookie dreams are made of. You always have the friendliest, tastiest family recipes. I know my family adores them!


Thursday 18th of July 2019

Thank you so much Andrea!

Big Rigs 'n Lil' Cookies

Thursday 17th of September 2015

Looks amazing! And, if I don't save any to share... "I only had one cookie", will be my storie!


Thursday 17th of September 2015

I think that is perfectly reasonable!


Monday 14th of September 2015

I love a good M&M cookie bar and the peanut butter takes it to a whole new amazing level!!!!


Monday 14th of September 2015

Me too and I can't help myself when it comes to peanut butter, so these sorts of treats are dangerous! Thank you so much for hosting!

Megan Chamberlin

Saturday 12th of September 2015

Oh my delicious, this looks amazing!! I love M&Ms, I love cookies. Sold! Thanks for linking this up to Merry Monday!


Saturday 12th of September 2015

No problem, I love to share tasty treats! Thanks for stopping by!

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