1 Giant Reese’s Pieces Peanut Butter Cookie

Meet a cookie the size of your head…

one giant peanut butter Reese's Pieces cookie on a silpat baking mat

Have you ever made a big giant cookie before? And not a chocolate chip cookie pizza or a chocolate chip cookie cake. Iโ€™m talking about one REALLY ENORMOUS cookie meant for one person. Two people if you’re willing to share. ๐Ÿ˜‰

This cookie is giant. Completely ridiculous. Over the top. The recipe is reduced down from my peanut butter cookies recipeโ€”only 2 Tablespoons of this, 2 Tablespoons of that. This recipe can easily be divided into 4 smaller peanut butter cookies, but reduce the baking time to about 9-10 minutes.

The only tricky part, if I can even call it that, is the egg and you may remember this if you’ve ever tried my one giant monster cookie or one giant double chocolate cookie. 1 egg is simply too much, so only use SOME of it. Crack 1 egg, beat it, then use 2 Tablespoons of the beaten egg. (Add the rest to your scrambled eggs the next morning!) Donโ€™t use just the egg yolk or just the egg white in this cookie.

one giant peanut butter Reese's Pieces cookie with a bite taken out of it on a wood board

The dough comes together in just 1 bowl. Easy clean up!

After the cookie comes out of the oven, place a few Reese’s Pieces on top. This is completely optional and purely for looks. But while you’re at it, grab an extra box or bag and make this Reese’s peanut butter white chocolate bark next!

No Dough Chilling

And what you may love most about this recipe… besides all those Reese’s Pieces… is that you donโ€™t need to chill the cookie dough. Quick and easy because nothing should stand in the way of a peanut butter cookie craving. Ha!

Here are all of my no dough chilling cookie recipes. These snickerdoodles and shortbread cookies are two favorites from the bunch!

one giant peanut butter Reese's Pieces cookie on a wood board
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one giant peanut butter Reese's Pieces cookie on a silpat baking mat

1 Giant Reese’s Pieces Peanut Butter Cookie

4.3 from 3 reviews
  • Author: Sally
  • Prep Time: 10 minutes
  • Cook Time: 20 minutes
  • Total Time: 40 minutes
  • Yield: 1 giant cookie
  • Category: Cookies
  • Method: Baking
  • Cuisine: American
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Description

A giant peanut butter-packed cookie for one.


Ingredients

  • 2 Tablespoons (28g) unsalted butter, softened to room temperature
  • 2 Tablespoons (25g) granulated sugar
  • 2 Tablespoons (25g) packed light or dark brown sugar
  • 2 Tablespoons (30ml) beaten egg (crack an egg, beat it, then use 2 Tbsp)
  • 1/2 teaspoon pure vanilla extract
  • 2 Tablespoons (31g) creamy peanut butter
  • 1/2 cup (62g) all-purpose flourย (spooned & leveled)
  • 1/4 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1/4 cup (48g) Reese’s Pieces
  • 1/4 cup (45g) semi-sweet chocolate chips


Instructions

  1. Preheat oven to 350ยฐF (177ยฐC). Line a large baking sheet with parchment paper or a silicone baking mat.
  2. Using a handheld or stand mixer fitted with a paddle or whisk attachment, beat the butter, granulated sugar, and brown sugar together in a large bowl on medium-high speed until combined and creamy. Add beaten egg, vanilla extract, and peanut butter and then beat on medium-high speed until combined. Scrape down the sides and up the bottom of the bowl as needed. Beat in the flour, baking soda, and salt on low speed, then beat in the Reese’s Pieces and chocolate chips until combined.
  3. With a large spoon, scoop into a ball onto prepared baking sheet. The dough will be sticky. Make sure the cookie dough ball is tall and round. I topped the cookie dough with a few extra Reese’s Pieces before baking.
  4. Bake for 19-22 minutes or until edges are lightly browned. The center may appear too soft, but it will set as the cookie cools.
  5. Cool the cookie on the baking sheet for 10 minutes before eating. As it cools, press a few Reese’s Pieces and/or chocolate chips into the top, if desired, for garnish. Cookie freezes well up to 3 months. Thaw at room temperature.

Notes

  1. Special Tools (affiliate links): Baking Sheet | Silicone Baking Mat or Parchment Paper | Electric Mixer (Handheld or Stand)
  2. One Batch: Want to make a whole batch of peanut butter cookies? Here’s my recipe for Peanut Butter Cookies. You can add 1 cup add-ins like chocolate chips and/or Reese’s Pieces. See Note in that recipe for adding add-ins.
  3. 4 Smaller Cookies: You can use this recipe to make four smaller cookies. Just divide the dough into 4 smaller mounds on the lined baking sheet. Bake for 10-12 minutes or until lightly browned around the edges.
  4. Peanut Butter: Use a thick non-natural style peanut butter such as Jif or Skippy. Crunchy peanut butter works, too! If using a natural peanut butter, make sure it’s on the thicker side. And feel free to skip the peanut butter, making no other changes to the recipe.
sally mckenney headshot purple shirt.
About the Author

Sally McKenney

Sally McKenney is a baker, food photographer, and New York Times best-selling author. Her kitchen-tested recipes and step-by-step tutorials have given millions of readers the knowledge and confidence to bake from scratch. Sallyโ€™s work has been featured on TODAY, Good Morning America, Taste of Home, People, and more.

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Reader Comments and Reviews

  1. Alex says:
    February 28, 2024

    Hi, i had asked earlier: my cookie didn’t spread. As in at ALL!! I had a mini mountain of cookie dough and luckily mashed it down at minute 15. What went wrong? Taste was amazing!!


  2. Shannon says:
    September 12, 2023

    Made these tonight as is except didn’t have Reese pieces so added chopped Reese’s instead. So yummy! I love your giant cookie recipes!

  3. Tiffany says:
    December 27, 2022

    Hi Sally! This looks so yummy. Do you think this is large and sturdy enough to make a cookie cake?

    1. Lexi @ Sally's Baking says:
      December 27, 2022

      Hi Tiffany, it will depend on the size pan you want to use (whether you’ll want to use as is, 1.5x, or 2x the recipe), but you can certainly use it in a cake pan like we do for this cookie cake.

  4. Alexis C says:
    June 20, 2022

    Made this cookie for Fatherโ€™s Day and it was delicious. My cookie didnโ€™t level out so I had a big mountain of a cookie. Not sure what happened there. Also, I recommend using a medium bowl. I found using a large bowl unnecessary and difficult to use the hand mixer.

    Overall, I would make this again! Like I said, the flavor was there and the cooking time was perfection. I left mine for 22 minutes. We had crispy edges/outer layer and a wonderfully soft and fluffy inner layer.

    We opted out of the

  5. Daniel says:
    July 1, 2015

    You are a revelation in the kitchen! Keep these fantastic peanut butter influenced recipes coming!ย 

  6. Kerri Kalinski says:
    February 24, 2013

    I would love to see a recipe for 1 large chocolate chip cookie too! I love your peanut butter one & do it whenever I need my cookie fix!

    1. Sally @ Sally's Baking says:
      February 24, 2013

      Hey Kerri! You could try my XXL Chocolate Cookie and replace the cocoa powder with 2 extra Tbsp of flour. ๐Ÿ™‚ https://sallysbakingaddiction.com/2013/02/13/1-xxl-death-by-chocolate-cookie/

  7. Ikhlas says:
    September 30, 2012

    Yum, this looks super yummy! I think this is a great idea if you have a cookie craving (me every day) and don’t want to bake up a whole batch of cookies.

  8. Sally @ Sally's Baking says:
    July 16, 2012

    Wish I could send you some reese’s to enjoy Erin! Hope you make and enjoy this cookie. Try it with chocolate chips!