Peanut Butter Monster Cookie Cupcakes

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These peanut butter monster cookie cupcakes are chalked full of peanut butter, chocolate and candy!  It’s a monster cookie… no, it’s a cupcake!

Peanut Butter Monster Cookie Cupcakes by

I was craving something today, but  I wasn’t sure quite what it was.  I got on Pinterest and started browsing around some food boards and came across the “Monster Cookie.”

On Pinterest, the monster cookie comes in many different shapes and sizes, colors and flavors and it was very unclear to me what exactly makes up one of these cookies.

So, I took to Facebook and asked you.  Here’s what some of you said:

  • Christy B: “…quick oats, m&ms, mini chocolate chips, peanut butter chips, and peanut butter.”
  • Melanie K: ” I make my Monster cookies with quick oats, M&M’s, chocolate chips and peanut butter. I only make them at Christmas but they are my husbands favorite cookies.”
  • Cindy J: “Everywhere I’ve worked it’s something different 1) a giant sized cookie 2) a cookie with lots of ingredients: chocolate chips,or m&m’s nuts, raisins, oatmeal or 3) 2 m&m cookies with buttercream filling and buttercream googly eyes on top.”
  • Roxana B: “Well the monster cookie recipe we use has oats, chocolate chips, and mini m&m’s in it.”
  • Darla B: “The size and the large amount of goodies in it” is what makes it a Monster cookie.

Peanut Butter Monster Cookie Cupcakes by

Okay… so peanut butter, M&M’s chocolate chips, oatmeal.  Those seem pretty standard in a monster cookie… anything else you add… well, those are just a bonus.   So, I decided to take those components and transform them into a cupcake.  These Peanut Butter Monster Cookie Cupcakes are super sweet, loaded with peanut butter and chocolate and extremely delicious! This cupcake is sure to cure your peanut butter or your monster cookie craving!

This cupcake is a peanut butter cake filled with chocolate toffee bits, chocolate chips and M&Ms. It’s then topped with a peanut butter cookie dough frosting that is also full of toffee bits,  mini chocolate chips and even more M&Ms!  It’s sweet, it’s crunchy, it’s full of candy and it’s SO GOOD!

If you love Monster Cookies – you’ll LOVE this cupcake!


Peanut Butter Monster Cookie Cupcakes by

Peanut Butter Monster Cookie Cupcakes
Prep time

Cook time


These peanut butter monster cookie cupcakes are chalked full of peanut butter, chocolate and candy! It’s a monster cookie… no, it’s a cupcake!
Serves: 12-16 cupcakes

Peanut Butter Monster Cookie Cupcakes
  • 1 cup all purpose flour
  • 1 tsp baking powder
  • ¼ tsp salt
  • 6 tbsp unsalted butter, room temperature
  • ¾ cup crunchy peanut butter
  • ½ cup packed dark brown sugar
  • ½ cup sugar
  • 2 large eggs
  • 1 tsp vanilla extract
  • ½ cup skim milk
  • ¼ cup Hershey’s Chocolate & Toffee Bits
  • ½ cup semi-sweet chocolate chips
  • ½ cup M&Ms – plus more for garnish
Peanut Butter Monster Cookie Frosting
  • ½ cup creamy peanut butter
  • ½ cup unsalted butter, room temperature
  • ¼ cup packed light brown sugar
  • 3 cups powdered sugar
  • ½ cup flour
  • 1 tsp vanilla extract
  • pinch of salt
  • ¼-1/2 cup heavy cream
  • ¼ cup Hershey’s chocolate & toffee bits
  • ¼ cup mini semi-sweet chocolate chips
  • ½ cup M&Ms – plus more for garnish

Peanut Butter Monster Cookie Cupcakes
  1. Preheat oven to 375 degrees F. Line cupcake pan with liners.
  2. In a small bowl, whisk together flour, baking powder and salt. Set aside.
  3. In a measuring cup that pours, measure the milk and vanilla. Set aside.
  4. In the bowl of an electric mixer with the paddle attachment, cream the butter, peanut butter and sugar together on high for at least 2 minutes. Scrape the sides of the bowl.
  5. Add the eggs and mix on high until light and fluffy.
  6. Slowly add ½ the flour and mix only until incorporated.
  7. Add the milk and mix. Scrape the sides of the bowl.
  8. Add the remaining flour and mix only until incorporated. Scrape the sides and hand mix any remaining flour that needs incorporating.
  9. Fold in the chocolate & toffee bits, chocolate chips and M&Ms.
  10. Fill liners at least ¾ full. Press 3-5 M&Ms onto the top of the batter in each cup.
  11. Bake for 18-22 minutes. Rotate pan after 10 minutes and reduce heat to 325 degrees F.
  12. Let cool in pan for 5 minutes before removing to a wire rack to cool completely.
Peanut Butter Monster Cookie Frosting
  1. Cream together the peanut butter and butter in the bowl of your stand mixer.
  2. Add the brown sugar and beat until incorporated.
  3. One cup at a time, mix in the powdered sugar and flour.
  4. Add the vanilla, salt and ¼ cup of heavy cream. Mix until smooth.
  5. Add up to ¼ cup more of heavy cream until you reach your desired consistency. Beat on high for 3-4 minutes or until light and fluffy.
  6. Mix in the candies.
  7. Using an ice cream scooper, scoop dollops of frosting onto the top of each cupcake. Press a few M&Ms onto the top as garnish.


16 Comments on Peanut Butter Monster Cookie Cupcakes

  1. cookingactress
    August 16, 2013 at 1:40 am (2 years ago)

    I’m in love with that mound of monster cookie frosting. Like seriously. I’m gonna propose to it. Hope that’s ok :P

    • Betsy Eves
      August 16, 2013 at 10:15 am (2 years ago)

      Yeah man…. it was so good. Seriously though… it’s all yours, have at it!! heheheh

  2. Rebecca B
    August 16, 2013 at 7:16 pm (2 years ago)

    That frosting alone looks amazing. I am pretty sure I’d eat half the bowl of frosting before it got onto the cupcakes!

  3. Amy (@amy_donovan)
    August 22, 2013 at 8:01 pm (2 years ago)

    These look AMAZING! I could definitely go for one right now. And I hope your husband and his platoon love the granola bars you’re making from my blog – I’m sending all the best wishes for a healthy deployment for him, and a quick return home to you. =)

    • Betsy Eves
      August 23, 2013 at 11:21 am (2 years ago)

      <3 Thank you, Amy!

  4. Vera Zecevic – Cupcakes Garden
    October 2, 2013 at 11:18 pm (1 year ago)

    This sound as a winning combo-candies, peanut butter, chocolate chips, toffee bits…I’m drooling over these yummy cupcakes. I’ve featured them on my blog, hoping you don’t mind, but if you do, please contact me and I’ll remove it.
    All the best.

  5. Connie
    October 6, 2013 at 2:09 am (1 year ago)

    I made these for my 3 year olds birthday party and everyone loved them! Thank you for another great recipe.

    • Betsy Eves
      October 6, 2013 at 10:13 am (1 year ago)

      You’re so welcome, Connie!

  6. Grace
    November 8, 2013 at 4:49 am (1 year ago)

    Just made these …so great I had pb m&ms mixed in delicious and super easy

  7. Elizabeth
    May 8, 2014 at 8:32 am (10 months ago)

    Wow, this looks so good! I was wondering if I could use this recipe and photo in a school project. Thanks!

    • Betsy Eves
      May 8, 2014 at 8:37 am (10 months ago)

      Hi Elizabeth :) You are more than welcome to make these cupcakes yourself and use your own phots. But please, refrain from printing the recipe/photos for public use or display. Feel free to provide a link to where you found the recipe if you do make them yourself! :) Thanks and good luck with your project Elizabeth!

  8. Terry
    June 17, 2014 at 2:33 am (9 months ago)

    We made this as a cake for my grandson’s 1st birthday party a few weeks ago. The cake was tasty but we could not figure out why the cake did not taste like peanut butter. We went back over the instructions and realized there is no step telling you when to add in the peanut butter that is in the list of ingredients. And since we made the recipe following the instructions we just missed putting in the peanut butter. You may want to correct your directions!

    • Betsy Eves
      July 30, 2014 at 10:17 am (7 months ago)

      OH MY GOODNESS! :/ I can’t believe I forgot the peanut butter… the best part! THANK YOU for noticing my error! I fixed it immediately!! Happy Baking!

  9. Amy
    July 30, 2014 at 5:04 am (7 months ago)

    I was wondering if these cupcakes are light and fluffy. I tried a different recipe before I saw yours and the cupcakes are very dense. They are more of a heavy muffin.


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