Indulge in the ultimate peanut butter experience with these easy-to-make Nutter Butter Bars! Also known as Nutter Butter Blondies, these delightful treats feature a rich, fudgy peanut butter cookie base, generously studded with creamy peanut butter and crunchy Nutter Butter cookies, and finished with a scattering of chocolate chips for an irresistible sweet and savory balance.
If you’re a true peanut butter connoisseur, you’ll also adore our Reese’s Peanut Butter Cookies, decadent Peanut Butter-Filled Brownie Cookies, and the effortlessly delicious No-Bake Chocolate Peanut Butter Bars.

The Ultimate Peanut Butter Dessert: Nutter Butter Bars!
There’s no denying the legendary status of Nutter Butter cookies. While other sandwich cookies have their charm, for a genuine peanut butter enthusiast, the distinctive peanut shape and intense flavor of Nutter Butters are simply unparalleled. That’s precisely why we’ve channeled all that nostalgic goodness into these incredible Chocolate Chip Nutter Butter Cookie Bars, designed to satisfy even the most intense peanut butter cravings.
Next time you’re searching for a standout peanut butter recipe, look no further. These blondies are truly exceptional. Imagine a dense, fudgy base bursting with rich peanut butter flavor, generously studded with chopped Nutter Butter cookies, and an abundance of gooey chocolate chips. Each bite offers a harmonious blend of chewy texture, a delightful crunch from the cookies, and a sweet, savory explosion that will undoubtedly make this your new favorite dessert. Prepare for pure heaven!
Why You’ll Fall in Love with These Nutter Butter Blondies
- Effortlessly Simple: These cookie bars are incredibly straightforward to prepare, making them perfect for bakers of all skill levels. You don’t need any fancy techniques or equipment to achieve bakery-quality results.
- Minimal Cleanup: Our recipe is designed as an easy one-bowl wonder, significantly reducing the amount of washing up. Spend less time scrubbing and more time enjoying your delicious creation!
- Intense Peanut Butter Flavor: For dedicated peanut butter lovers, these bars deliver a powerful punch of rich, authentic peanut butter taste. It’s a triple threat of peanut butter goodness from the base, the cookies, and the overall profile.
- Perfect Texture Combination: Experience the best of both worlds – each bar is wonderfully soft and chewy, providing that comforting melt-in-your-mouth sensation, perfectly complemented by the satisfying crunch of the Nutter Butter cookies baked right in and on top.

Essential Ingredients for Irresistible Nutter Butter Bars
Crafting these amazing Nutter Butter Bars requires a few key ingredients, each playing a crucial role in developing their exceptional flavor and texture. For the precise measurements and a complete list, please refer to the detailed recipe card below.
- Butter: You can opt for either salted or unsalted butter in this recipe. Using unsalted butter gives you more control over the overall saltiness, while salted butter can add an extra layer of flavor. Ensure it’s good quality butter for the best results, as it forms the rich base of our blondies.
- Brown Sugar & Granulated Sugar: A harmonious blend of both light brown sugar and granulated sugar is essential. The brown sugar contributes to the bars’ moistness, chewiness, and a subtle caramel-like depth, while the granulated sugar ensures proper structure and sweetness, creating that perfect blondie texture.
- Peanut Butter: For these bars, we recommend using a smooth, non-natural creamy peanut butter, such as Skippy or Jif. These types of peanut butter provide a consistent texture and flavor that blends beautifully into the dough, ensuring a rich and familiar taste. Natural peanut butter tends to separate and can alter the texture of the bars.
- Egg: A single large egg acts as a binder, helping to hold the ingredients together and adding to the fudgy texture of the bars. Always ensure your egg is at room temperature before mixing, as this allows it to emulsify more effectively with the other ingredients, resulting in a smoother batter.
- Vanilla Extract: Don’t skip the vanilla extract! It’s a flavor enhancer that adds warmth and depth, complementing the sweet and nutty notes of the peanut butter and chocolate, making the overall flavor profile even more complex and delicious.
- All-Purpose Flour: Standard all-purpose flour is ideal for these bars, providing the necessary structure without making them too dense. Measure your flour correctly by spooning it into a measuring cup and then leveling it off to avoid overly dry or crumbly bars.
- Salt: A small amount of salt is vital in any baking recipe. It balances the sweetness, enhances all the other flavors, and prevents the bars from tasting overly sugary.
- Nutter Butter Cookies: These are truly the star! You’ll be roughly chopping these iconic peanut butter sandwich cookies to incorporate them directly into the cookie bar dough, adding bursts of peanut butter flavor and a delightful textural crunch. Save a few extra to scatter on top for an appealing visual and an extra layer of crunch.
- Mini Chocolate Chips: We suggest using good quality semi-sweet mini chocolate chips. The mini size ensures you get chocolate in every bite without overwhelming the peanut butter flavor, and semi-sweet offers a perfect contrast to the sweetness of the blondies. Feel free to add a couple of extra tablespoons on top for a beautiful finish.

Crafting Your Amazing Nutter Butter Bars: A Step-by-Step Guide
Creating these delightful Nutter Butter Blondies is a surprisingly simple process. Follow these steps for a perfect batch every time. For full, detailed instructions, please refer to the recipe card below.
- Prepare the Brown Butter: In a small, heavy-bottomed saucepan, melt the butter over medium heat. Continue cooking, stirring continuously, until the butter becomes foamy and transforms into a beautiful medium golden brown, giving off a nutty aroma. This browning process adds an incredible depth of flavor. Remove it from the heat immediately, transfer it to a medium bowl, and allow it to cool to room temperature. It doesn’t need to solidify.
- Combine Wet Ingredients: Once your brown butter has cooled, whisk together the melted brown butter, both brown sugar and granulated sugar, and the creamy peanut butter until everything is well combined and smooth. This forms the rich, flavorful base of your blondies.
- Add Egg and Vanilla: Incorporate the room-temperature egg and the vanilla extract into the wet mixture. Mix until just combined, ensuring the egg is fully incorporated without overmixing.
- Introduce Dry Ingredients and Cookies: Gently fold in the all-purpose flour and salt. Mix until the flour streaks have just disappeared; avoid overmixing, as this can lead to tough bars. Finally, fold in the roughly chopped Nutter Butter cookies and chocolate chips, distributing them evenly throughout the dough.
- Bake to Perfection: Press the prepared Nutter Butter blondie dough evenly into an 8×8 inch square baking pan lined with parchment paper. For an extra touch, scatter a few more chopped Nutter Butter cookies and chocolate chips over the top before baking. Bake in a preheated oven until golden brown and set.
- Cool Completely: This step is crucial for achieving perfectly set, sliceable bars. Allow the bars to cool down fully in the pan before attempting to slice them. Depending on your kitchen’s temperature, this could take an hour or two. Patience is key! Once completely cool, slice them into squares and enjoy every delectable bite.





Tips for Achieving Perfect Nutter Butter Bars Every Time
While this recipe is quite forgiving, a few expert tips can elevate your Nutter Butter Bars from great to absolutely phenomenal:
- Don’t Rush the Brown Butter: Browning butter adds an incredible nutty, toasted flavor that makes these blondies truly stand out. Take your time, stir constantly, and watch carefully to prevent burning. The reward is well worth the effort.
- Room Temperature Ingredients: Ensure your egg and cooled brown butter are at room temperature. This helps them incorporate smoothly into the batter, creating a cohesive and evenly textured dough.
- Measure Flour Accurately: Too much flour can result in dry, crumbly bars. Use the spoon-and-level method: spoon flour into your measuring cup and then level it off with a straight edge, rather than scooping directly from the bag.
- Avoid Overmixing: Once you add the flour, mix only until just combined. Overmixing develops the gluten in the flour, which can lead to tough, dense bars instead of the desired soft and chewy texture.
- Parchment Paper is Your Friend: Lining your baking pan with parchment paper, leaving an overhang on the sides, makes it incredibly easy to lift the entire slab of cooled bars out of the pan for neat slicing.
- Cool Completely Before Slicing: This cannot be stressed enough! Warm bars will be too soft and prone to falling apart. Allowing them to cool completely, ideally for 1-2 hours at room temperature, allows them to set properly, resulting in clean, firm squares.
Delicious Variations for Your Nutter Butter Blondies
These Nutter Butter Bars are fantastic as is, but don’t hesitate to experiment with these delicious variations to make them your own:
- Different Chocolate Chips: While semi-sweet is classic, try milk chocolate chips for a sweeter bar, dark chocolate chips for a richer contrast, or even white chocolate chips for a creamier twist. A mix of different chocolates can also be delightful!
- Add Other Nuts: Enhance the nutty profile by folding in some chopped roasted peanuts, pecans, or walnuts along with the Nutter Butter cookies.
- Swirls of Jam: After spreading half the dough into the pan, dollop spoonfuls of strawberry or raspberry jam over it, then top with the remaining dough and swirl gently with a knife before baking. Peanut butter and jelly in bar form!
- Pretzel Crunch: For a delightful sweet and salty combination, crush some pretzels and fold them into the dough, or sprinkle them on top before baking.
- Candy Bits: Mix in chopped peanut butter cups (like Reese’s), M&M’s, or other favorite candy pieces for an extra layer of flavor and texture.
- A Touch of Spice: A tiny pinch of cinnamon or a dash of nutmeg can add an unexpected warmth and complexity to the peanut butter flavor.
Serving Suggestions for the Ultimate Treat
These Nutter Butter Bars are incredibly versatile and delicious on their own, but here are a few ideas to make them an even more special dessert:
- Classic with Milk: There’s nothing quite like a cold glass of milk to accompany a rich, chewy cookie bar. It’s a timeless pairing that highlights the flavors perfectly.
- A La Mode: Serve a warm Nutter Butter Bar with a scoop of vanilla bean ice cream. The contrast of warm and cold, soft and creamy, is simply divine. A drizzle of chocolate or caramel sauce would be an excellent addition.
- With Coffee or Tea: These bars make a wonderful afternoon pick-me-up or an indulgent treat with your morning coffee or evening tea.
- For Parties and Potlucks: Cut into smaller squares, these bars are perfect for sharing at gatherings. They’re always a crowd-pleaser and travel well.
- Dessert Platter: Combine them with other small treats, cookies, and brownies for an impressive dessert spread.

Nutter Butter Cookie Bars / Blondies Recipe
Nutter Butter Bars / Blondies
These Nutter Butter Bars are an explosion of peanut butter flavor. Made with a rich peanut butter base, Nutter Butter cookies mixed into the dough and on top, and the perfect amount of chocolate chips.
Print Recipe
Equipment
- 8×8 baking pan
Ingredients
- 1/2 cup butter (salted or unsalted)
- 1/2 cup light brown sugar
- 1/4 cup granulated sugar
- 1/2 cup smooth peanut butter (Skippy or Jif recommended)
- 1 large egg (at room temperature)
- 1 tsp vanilla extract
- 1 cup all-purpose flour
- 1/4 tsp salt
- 7 Nutter Butter cookies (roughly chopped, plus 3 extra for topping)
- 1/2 cup mini semi-sweet chocolate chips (plus 2 extra tablespoons for topping)
Instructions
Make the Brown Butter
- In a small, heavy-bottomed saucepan, melt the butter over medium heat, stirring continuously. Continue cooking for 3-5 minutes until the butter becomes foamy and turns a medium golden brown, developing a nutty aroma.
- Keep a close eye on it as it can burn easily. Remove from heat, transfer to a medium bowl, and let the butter cool down to room temperature. It does not need to harden.
Make the Nutter Butter Blondies
- Preheat your oven to 350°F (175°C) and line an 8×8 inch baking pan with parchment paper, leaving an overhang on the sides.
- Once the brown butter is at room temperature, combine it with the peanut butter, granulated sugar, and brown sugar. Mix on medium speed until well combined.
- Add the room-temperature egg and vanilla extract to the mixture and mix until just combined.
- Mix in the flour and salt until the flour streaks have just disappeared. Be careful not to over-mix the blondie batter. Fold in the roughly chopped Nutter Butter cookies and the mini chocolate chips.
- Spread the dough evenly into the prepared 8×8 inch baking pan. Top with the extra roughly chopped Nutter Butter cookies and additional mini or regular chocolate chips. Bake for 20 minutes.
- Once baked, remove the bars from the oven and allow them to cool completely in the pan before slicing. This can take 1-2 hours at room temperature, which is essential for the bars to fully set. Slice into 16 equal squares and enjoy!
Notes
How to Store These Peanut Butter Cookie Bars?
Store these Nutter Butter Bars in an airtight container at room temperature for up to 4-5 days. For longer freshness, you can also store them in the refrigerator.
Can I Freeze These Bars?
Absolutely! You can freeze these Nutter Butter Cookie Bars in an airtight container or freezer bag for up to 2 months. To enjoy them later, thaw them in the fridge overnight or on the counter for a few hours. For an extra gooey treat, microwave a thawed bar for a few seconds!
Can I Make These Bars in a 9×9 Baking Pan?
Yes, you certainly can! Just be aware that your cookie bars will be slightly thinner, so you might need to adjust the baking time down by a couple of minutes. Keep an eye on them to prevent overbaking.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
- Calories: 258
- Carbohydrates: 27g
- Protein: 4g
- Fat: 15g
- Saturated Fat: 7g
- Polyunsaturated Fat: 2g
- Monounsaturated Fat: 5g
- Trans Fat: 0.2g
- Cholesterol: 26mg
- Sodium: 254mg
- Potassium: 121mg
- Fiber: 1g
- Sugar: 16g
- Vitamin A: 196IU
- Calcium: 39mg
- Iron: 1mg
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If you’re a fan of gooey, peanut-butter packed desserts, these Nutter Butter Blondies are sure to become a staple in your recipe collection. Don’t let this incredible treat slip away – save it to your Pinterest board so you can whip up a batch whenever a craving strikes!


