Monster Cookies


Monster cookies, the kitchen-sink of cookies, with M and Ms, chocolate chips, peanut butter, nuts, and toffee bits.

Photography Credit: Elise Bauer

Monster cookies. Ultimate Chippers. Super Cookies. Regardless what you call them, kids love them. A cookie packed full of peanut butter, chocolate, and candy, it’s a must have cookie for Halloween and perfect for any kid oriented event.

Still, adults shouldn’t miss out and personally, I’m not the biggest peanut butter and candy fan (insert collective gasp). So while making this classic kiddy cookie, I decided to make a few tweaks for an adult version of The Monster.

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Studded with Heath toffee bar chips, dark chocolate, and pecans it’s a very sophisticated sugar rush. I also made a version that didn’t use peanut butter to make sure everyone’s happy, including those who aren’t so inclined to the stuff.

Personally I like to split the base dough into two parts; one half using kids mix-ins and the other using adult mix-ins. If you decide to split the dough into two different batches, halve the amount of the mix-ins, otherwise it will be all candy and no cookie. Of course feel free to add white chocolate, almonds, coconut or whatever you most enjoy, that way everybody wins.

Monster Cookies Recipe

  • Yield: Makes about 3 dozen cookies


Peanut Butter cookie ingredients:

  • 1/2 cup of unsalted butter, room temperature
  • 1/2 cup of creamy peanut butter
  • 3/4 cup of granulated sugar
  • 3/4 cup of packed brown sugar
  • 2 eggs, room temperature
  • 1 teaspoon of vanilla extract
  • 1 teaspoon of baking soda
  • 1 teaspoon of salt
  • 2 1/4 cups of all-purpose flour

Regular monster cookies ingredients:

  • 1 cup of unsalted butter, room temperature
  • 3/4 cup of granulated sugar
  • 3/4 cup of packed brown sugar
  • 2 eggs, room temperature
  • 1 teaspoon of vanilla extract
  • 1 teaspoon of baking soda
  • 1 teaspoon of salt
  • 2 1/4 cups of all-purpose flour

Kids Monster Cookies Mix-Ins For Whole Batch

  • 1/2 cup of butterscotch chips
  • 1 1/4 cups of M&Ms
  • 1 cup of Chocolate Chips

Adult Monster Cookies Mix-Ins For Whole Batch

  • 1/2 cup of chopped pecans
  • 1 cup of chocolate chips (dark chocolate preferable)
  • 1 cup of chopped Heath bar bits


1 Preheat oven to 375°F. Beat the butter and peanut butter until light and fluffy. Add the sugars and beat at medium speed until well incorporated and fluffy.

2 Add the eggs and vanilla and beat for about 2 minutes on medium speed.

3 Add the baking soda and beat for 30 seconds. Be sure to scrape down the sides and bottom to ensure all the butter is well incorporated.

4 Add the flour and salt, a bit at a time until incorporated but do not overmix.

5 Fold in the mix-ins for either the kid version or the adult version. OR split the dough in half and cut the mix-in ingredient measurements in half, for half adult cookies and half kid cookies.

6 Line a baking sheet with parchment paper and scoop on rounded spoonfuls of dough and bake for 10-12 minutes or until lightly golden bown. Be sure to let them cool on the baking sheet before you move them.

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Garrett McCord

Garrett McCord is a professional writer and recipe developer whose work has appeared in many print and online publications such as Gourmet Live, Saveur, Huffington Post, Smithsonian, and NPR. Past clients also include numerous food companies, wineries, and distilleries. Garrett writes about cocktails on his website, Coupe de Grace.

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23 Comments / Reviews

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Did you make it? Rate it!

  1. Astrid

    Question if you don’t have heath bars in my country will love to hear an alternative to this.

    The beauty of this recipe is you can use whatever you want. No worries. ~Garrett

  2. Brittany

    I just made these cookies for the kids I nanny and they are amazing! The kids gobbled them up and asked for seconds. I made them big – bakery sized – and the browned beautifully while remaining soft inside. Thanks for the recipe!

  3. gillian

    My cookies turned out well (tasted well too!) but once it cooled, it became REALLY soft! I put it in the oven for only about 7-8 minutes because it starts to burn after that. Do you reckon that I should try lowering the temperature or my rack on the oven?

    Yes, and I would get an oven thermometer as I am guessing your oven is running way too hot. ~Garrett

  4. Denise

    I made the peanut butter version with Smuckers Natural Peanut Butter last night. I needed to make up dough ahead of time to bring to a friend’s house to make cookies with her 3 yr old. I smashed up Pretzel M&M’s and chopped up a big-rich-dark-chocolate brownie and froze the pieces to set them before mixing in. We mashed it all together with our hands, rolled them into small balls, then put criss crosses on them with forks…(the few that we didn’t, puffed up really high and were too big to get in her mouth!) They were amazing!! Only cooked ours for 8 min. and sat on cookie sheet to rest. Awesome recipe. :)

  5. Mary

    These are delicious! I just made them at the beach for my family and everyone is raving over them. For any pregnant ladies out there these go great with ice cream! :)

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