Indulge in Irresistibly Chewy Chocolate Reese’s Pieces Pudding Cookies: Your Secret Ingredient for Holiday Bliss
Discover the magic behind these unbelievably thick, perfectly chewy chocolate cookies – it’s all thanks to a simple box of instant pudding mix. Get ready for a dessert that will truly melt in your mouth!

Embracing the Sweetness of Cookie Week (Officially Unofficial)
Welcome to what I’ve affectionately dubbed “Cookie Week” here at The Messy Baker! While not originally a planned event on my calendar, it has organically blossomed into a delightful celebration of all things sweet and baked. As fate would have it, every recipe I had slated for this festive period turned out to be a cookie recipe. And honestly, what better way to herald the holiday season than with an entire week dedicated to the universal comfort and joy that only cookies can bring?
This impromptu theme couldn’t be more perfect. The holiday season, with its twinkling lights, cozy gatherings, and a general air of generosity, practically demands a steady supply of freshly baked treats. It’s a time for warmth, sharing, and, undeniably, a little indulgence. So, let’s lean into it, shall we?

Permission to Indulge: The Holiday Mandate
I know, I know – I’ve been somewhat of an enabler lately, showering you with an abundance of decadent desserts. But let’s be real for a moment: it’s almost Christmas! With just nine days left until the big day, the unspoken rule of the holidays is simple: indulge freely. This magical time of year is a license to enjoy rich flavors, delightful aromas, and the pure, unadulterated pleasure of a well-deserved treat. After all, the New Year will bring with it plenty of resolutions for detoxes, juice cleanses, and a return to healthier habits. But for now, let’s savor every delicious moment.
So, for the time being, let’s collectively agree to postpone any thoughts of restrictive diets. We’ll conquer the world of kale and quinoa in January. Until then, our mission, should we choose to accept it, is to feast! And what better way to do that than with an endless supply of cookies?

Baking for a Cause: The Great Food Blogger Cookie Swap
My journey into this week of delicious cookies was recently inspired by my participation in The Great Food Blogger Cookie Swap. This wonderful annual event is far more than just an excuse to bake and eat cookies – it serves a truly noble purpose. Its primary goal is to raise vital funds for Cookies for Kids’ Cancer, an incredible organization dedicated to funding innovative new therapies in the fight against pediatric cancer. It’s an initiative that beautifully marries the simple joy of baking with the profound impact of giving back.
The experience was incredibly rewarding. Not only did we get to contribute to a fantastic cause, but we also had the immense pleasure of exchanging cookies with fellow food bloggers from across the digital landscape. I lovingly baked up a batch of my chosen cookies and sent them off to three other talented bloggers, eagerly anticipating their reactions. In return, the mail brought me three distinct and utterly scrumptious cookie packages, each a delightful surprise and a testament to the creativity and passion of the blogging community.

The Joy of Sharing: My Signature Cookie Selection
Each box of cookies I received was a little parcel of heaven, filled with treats that were, without exception, absolutely delicious. My initial instinct, I confess, was to hoard every single one for myself – a natural reaction when faced with such delectable temptations! However, embracing the true spirit of Christmas and the giving nature of the swap, I decided to share these culinary treasures with my family and friends, spreading the joy even further.
For my part, I sent my three cookie recipients a dozen of these very Chocolate Reese’s Pieces Pudding Cookies. Choosing which cookie to send was a big decision, but these quickly became the clear front-runner. They are, without a doubt, Squirrel’s (my affectionate nickname for my son) and my dad’s absolute favorite cookie recipe this year. Their enthusiastic approval sealed the deal, confirming that these cookies possessed that special something – that perfect blend of comfort and indulgence – that makes them ideal for sharing during the holidays.


A Father’s Simple Request: “More Brown Cookies”
The true measure of a successful cookie recipe often lies in the most candid feedback. Just the other day, my dad, with a twinkle in his eye, asked me if I had any more of “those brown cookies with the peanut butter pieces.” He didn’t call them “chocolate cookies,” or “Reese’s Pieces cookies,” but simply “brown cookies.” It’s a charming testament to how utterly delicious they are – he doesn’t necessarily know all the ingredients, but he knows he loves them! This simple, heartfelt request spoke volumes. It confirmed that these cookies are not just a recipe; they are a comforting, memorable experience for those who taste them.
So, it goes without saying, more of “the brown cookies with peanut butter pieces” are definitely on the agenda for our Christmas celebrations. Knowing how much joy they bring makes the baking all the more worthwhile.

The Secret to Unbeatable Softness and Chewiness: Instant Pudding Mix
Now, for the “secret ingredient” I teased at the beginning – the magic behind the incredible softness and chewiness of these cookies: instant chocolate pudding mix. This unassuming boxed ingredient is a game-changer in cookie baking. It works by introducing an extra layer of moisture and a specific type of starch into the dough, which results in a cookie that is not only exceptionally soft and fudgy but also stays that way for days after baking. The pudding mix ensures a delightful chewiness that traditional cookies often struggle to maintain once cooled.
Beyond texture, the chocolate pudding mix also amplifies the chocolate flavor, giving these cookies a deep, rich cocoa profile without making them overly sweet or dense. It’s an ingenious way to elevate a standard chocolate cookie into something truly extraordinary. And to make these cookies truly irresistible, they are generously loaded with a trifecta of deliciousness: semi-sweet chocolate chips for classic richness, creamy peanut butter chips for that perfect salty-sweet balance, and my absolute favorite, mini Reese’s Pieces, which burst with an unmistakable peanut butter and chocolate flavor in every bite. This combination creates a symphony of textures and tastes that is simply divine.

Achieving Cookie Perfection: Essential Baking Tips
One of the many joys of this recipe is its straightforward approach. It comes together effortlessly, whether you’re using the convenient paddle attachment on your trusty stand mixer or a reliable hand mixer. The process is simple, making it accessible even for novice bakers. However, to truly unlock the full potential of these Chocolate Reese’s Pieces Pudding Cookies – to achieve that coveted extra-thick, wonderfully chewy texture – I highly recommend a crucial step: chilling the dough. Refrigerating the dough for at least 4 hours, or even overnight, makes a significant difference. Chilling allows the fats in the butter to solidify, preventing the cookies from spreading too much in the oven, thus contributing to their enviable thickness. It also gives the flavors time to meld and deepen, resulting in a more complex and satisfying taste.
If, however, you find yourself short on time or simply prefer a slightly crunchier cookie (though the soft and chewy texture is truly what makes these stand out!), you can certainly mix and bake the dough right away. The cookies will still be delicious, just a bit flatter and with a crispier edge. For the ultimate experience, though, that patience with chilling is well worth it. Remember to watch them carefully in the oven – you want them to appear slightly underbaked in the center when you pull them out, as they will continue to set as they cool on the baking sheet. This ensures that perfectly soft, melt-in-your-mouth interior.

Chocolate Reese’s Pieces Pudding Cookies
Super thick, incredibly soft, and delightfully chewy chocolate pudding cookies loaded with a harmonious blend of semi-sweet chocolate chips, creamy peanut butter chips, and fun mini Reese’s Pieces. A true crowd-pleaser for any occasion!
Yield: 24-28 cookies
Total Time: 18 minutes
Prep Time: 5 minutes
Cook Time: 13 minutes
Ingredients:
- 1 stick (1/2 cup) unsalted butter, softened
- 3/4 cup packed light brown sugar
- 1/4 cup granulated sugar
- 1 large egg
- 1 large egg yolk
- 2 teaspoons pure vanilla extract
- 1 and 1/4 cups all-purpose flour
- 1 (3.9-ounce) package instant chocolate pudding mix (not cooked type)
- 1/4 cup unsweetened cocoa powder
- 1 teaspoon baking soda
- 1/2 teaspoon kosher salt
- 1 tablespoon cornstarch
- 1 teaspoon instant espresso powder (enhances chocolate flavor)
- 1/2 cup peanut butter chips
- 1/2 cup semi-sweet chocolate chips
- 1/2 cup mini Reese’s Pieces
Directions:
- In the bowl of a stand mixer fitted with the paddle attachment (or using a hand mixer), cream together the softened unsalted butter, brown sugar, and granulated sugar on medium speed until the mixture is light and fluffy, which usually takes about 2 minutes.
- Add the whole egg, egg yolk, and vanilla extract to the creamed mixture. Beat until the mixture is smooth and well combined, pausing as needed to scrape down the sides and bottom of the bowl.
- In a separate bowl, whisk together the all-purpose flour, instant chocolate pudding mix, cocoa powder, baking soda, kosher salt, cornstarch, and espresso powder. Gradually add these dry ingredients to the wet ingredients in the mixer bowl. Turn the mixer on low speed and beat until the flour mixture is just thoroughly combined, being careful not to overmix.
- Gently fold in the peanut butter chips, semi-sweet chocolate chips, and mini Reese’s Pieces until they are evenly distributed throughout the cookie dough.
- Cover the dough with plastic wrap and refrigerate for at least 4 hours. For the absolute best texture and flavor, chilling overnight (up to 24 hours) is highly recommended.
- When ready to bake, preheat your oven to 350 degrees F (175 degrees C). Line a baking sheet with parchment paper or a silicone baking mat.
- Scoop 1-tablespoon sized balls of chilled dough onto your prepared baking sheet, leaving about 2 inches between each cookie. Gently press down on the top of each dough ball to flatten slightly.
- Bake for 12-13 minutes. The cookies will appear slightly puffed and may look slightly undercooked in the center; this is normal and contributes to their chewiness.
- Allow the cookies to cool on the baking sheet for at least 10 minutes before carefully transferring them to a wire rack to cool completely. The cookies will continue to firm up as they cool.
- Store the cooled cookies in an airtight container at room temperature for up to 1 week, though they rarely last that long!
***If you are short on time and don’t mind a slightly flatter, crunchier cookie, you can certainly bake your cookies right after mixing the batter. However, for that ultimate thick and chewy texture, the chilling step is highly recommended.