Ultimate Peanut Butter Cup Monster Cookies

This easy Monster Cookies recipe is packed with all of my favorite things! Made with chocolate chunks, Reese’s Pieces and mini peanut butter cups, it doesn’t get much better than these cookies!

monster cookies

The Ultimate Monster Cookies Recipe

I am so excited for you to try these Ultimate Monster Peanut Butter Cup Cookies! You are going to love the crispy edges and soft sweet center. I played around with browning just one stick of butter and keeping the other stick softened. Love how they turned out! Hope you enjoy!

Try my Best Brown Butter Cookies too! Follow Picky Palate on Instagram for daily recipe inspiration.

What Are Monster Cookies?

Monster cookies are basically peanut butter, oatmeal, chocolate chip and M&M cookies. Kind of a version of your “kitchen sink” cookies. Keep in mind you can make monster cookies lots of different variations…like the version I’ve done today. You’re going to love it!

monster cookies

Ingredients For Peanut Butter Cup Cookies

  • butter
  • dark brown sugar
  • granulated sugar
  • 2 eggs
  • pure vanilla extract
  • all-purpose flour
  • baking soda
  • salt
  • chocolate chunks
  • Reese’s Pieces
  • Mini Peanut Butter Cups

monster cookies

How To Make Monster Cookies

  1. Preheat oven to 375 degrees F. and line baking sheet with parchment paper.
  2. Place one of the sticks of butter in a small saucepan over medium heat to melt. Swirl and cook until bubbly and turns deep golden brown. Takes close to 10 minutes, but watch carefully swirling pan often to check color. Once butter has burned brown, pour into a heat proof bowl, scraping brown bits from pan into the bowl. Let cool for 15 minutes.
  3. Place brown butter and regular stick of softened butter into a large mixing bowl or stand mixer. Add brown sugar and granulated sugar mixing until well combined.  Eggs and vanilla up next, mixing until well combined. Add flour, baking soda and salt stirring until dough forms then add chocolate chunks, Reese’s Pieces and mini peanut butter cups. Scoop dough onto baking sheet…you can do large 1/4 cup dough size balls onto the baking sheet or regular size scooped dough. If making the large cookies, place dough 2 inches apart from each other. If making regular size scooped cookie dough pieces, place 1 inch apart. For the large cookies, bake for 12-13 minutes. For regular size cookies bake for 10-12 minutes. Remove from oven and let cool before transferring.

monster cookies

Can I Use Different Candy in Monster Cookies?

Yes! You can use M&M’s in place of the Reese’s Pieces if you’d like and if you want to substitute the Mini Peanut Butter Cups, you can try other chopped candy bars of your choice. Snickers, Twix, Payday Candy Bars are a few good choices.

Where Can I Buy Mini Peanut Butter Cups?

I find mine at Trader Joe’s, they come in a package located above the frozen food section. You’ll see other chocolate selections near them. I’ve also spotted a bag at Target in the baking section that comes with the Mini Peanut Butter Cups and Reese’s Pieces in one bag. Check their baking isle for it.

How Do I Brown Butter Correctly?

I’ve got a step by step photos and instructions on my blog post How To Brown Butter. Make sure to read that for helpful tips!

Do I Have To Brown the Butter?

Technically no, but if you want the cookies to look and taste like the ones I’ve posted here, I highly recommend it 🙂

monster cookies

If you haven’t tried brown butter cookie dough,  you are in for quite a treat! It’s so rich with a touch of sweet and salty notes.

monster cookies

You have a couple of options when baking your cookies. You can make giant cookies, which is about 1/4 cup of dough per cookie. Roll them into a ball and place at least 2 inches apart.

monster cookies

This is how it should look if you are making giant 1/4 cup cookie dough cookies. Make sure you place them 2 inches apart so there’s room for spreading. NOTE: if you want to make normal size, 2 tablespoon-ish sized cookie dough pieces, you can place them 1 inch apart from each other. Also note that baking large cookies will be between 12-13 minutes and regular size cookies about 10-12 minutes.

Can I Freeze The Cookie Dough And Bake Later?

Yes, prepare the dough, roll into balls and store in either a large Ziplock bag or an airtight container until ready to bake. Bring close to room temperature before baking.

monster cookies

These cookies bake so nicely. If you want to see some peanut butter cups and Reese’s Pieces on top of the cookies, at about 8 minutes of baking top partially baked cookies with some peanut butter cups and Reese’s Pieces. I’ve done it without this method and they turn out lovely as well, just not as many pieces on top. Either way, you’re winning 🙂

monster cookies

How To Store Extra Cookies?

Store any remaining cookies in a large Ziplock bag or airtight container for about 3 days at the most for best results.

monster cookies

Ultimate Peanut Butter Cup Monster Cookies

These Ultimate Peanut Butter Cup Monster Cookies are perfect for parties, after school treats....and anytime cookie making! They bake up perfect every time!
Course: Dessert
Cuisine: American
Prep Time 15 mins
Cook Time 12 mins
Total Time 27 mins
Servings: 24 cookies
Calories: 267kcal
Author: Jenny
Cost: $10
Print Pin Rate

Equipment

  • Oven
  • cookie sheet
  • mixing bowl

Ingredients

  • 2 sticks butter divided (one stick will be browned)
  • 1 cup packed dark brown sugar
  • 1/2 cup granulated sugar
  • 2 large eggs
  • 1 tablespoon pure vanilla extract
  • 2 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1 teaspoon kosher salt
  • 1 cup chocolate chunks I use the Trader Joe's chocolate block and chop myself
  • 1 cup Reese's Pieces
  • 1 1/2 cup Mini Peanut Butter Cups found at Trader Joe's

Instructions

  • Preheat oven to 375 degrees F. and line baking sheet with parchment paper.
  • Place one of the sticks of butter in a small saucepan over medium heat to melt. Swirl and cook until bubbly and turns deep golden brown. Takes close to 10 minutes, but watch carefully swirling pan often to check color. Once butter has burned brown, pour into a heat proof bowl, scraping brown bits from pan into the bowl. Let cool for 15 minutes.
  • Place brown butter and regular stick of softened butter into a large mixing bowl or stand mixer. Add brown sugar and granulated sugar mixing until well combined. Add eggs and vanilla mixing until well combined. Add flour, baking soda and salt stirring until dough forms then add chocolate chunks, Reese's Pieces and mini peanut butter cups. Scoop dough onto baking sheet...you can do large 1/4 cup dough size balls onto the baking sheet or regular size scooped dough. If making the large cookies, place dough 2 inches apart from each other. If making regular size scooped cookie dough pieces, place 1 inch apart. For the large cookies, bake for 12-13 minutes. For regular size cookies bake for 10-12 minutes. Remove from oven and let cool before transferring.

Nutrition

Calories: 267kcal | Carbohydrates: 39g | Protein: 5g | Fat: 11g | Saturated Fat: 5g | Cholesterol: 15mg | Sodium: 230mg | Potassium: 157mg | Fiber: 2g | Sugar: 28g | Vitamin A: 33IU | Vitamin C: 1mg | Calcium: 35mg | Iron: 1mg
Keywords: best monster cookies recipe, monster cookies

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monster cookies

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2 Responses
  1. Laurel

    You mention oatmeal at the beginning of your post (which piqued my interest) when you answer, “What’s in Monster cookies?” But don’t list this as an ingredient. Unsure if you forgot to add that in your recipe notes, or if there isn’t oatmeal at all in this recipe. Please note. Thank you. I’m a novice to baking and I’d love oatmeal in this cookie recipe, but no clue how much to add if that’s an ingredient in this particular recipe. ☺️

    1. Hi Laurel! I was describing a “typical” Monster Cookie, and yes they usually have oatmeal. My recipe does not. If you’d like to add some, add 1/2 cup, I think that would work out just fine 🙂

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Picky PalateWelcome to my online kitchen! You'll usually find me with a cookie in one hand & a salad in the other. It's all about the balance :) The recipes you'll see are my creations. Enjoy!

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