A delightful aroma wafts through my kitchen, wrapping me in a warm hug of nostalgia. Today, I’m thrilled to share my recipe for Peanut Butter Chocolate Chip Cookie Bars, a sweet treat that brings comfort to any day. These bars are not only incredibly easy to whip up—ready in just over 45 minutes—but they also double as a crowd-pleaser for gatherings or a cozy night in. Imagine biting into a soft, chewy slice filled with rich peanut butter and melting chocolate, satisfying both cravings and sweet tooth alike. With minimal effort and mouthwatering results, you’ll find these bars quickly becoming a staple in your baking repertoire. Are you ready to create a decadent dessert the whole family will adore?

Why are these cookie bars so irresistible?
Unmatched Flavor: These Peanut Butter Chocolate Chip Cookie Bars are a dream combination of creamy peanut butter and rich chocolate, offering an explosion of taste with every bite.
Quick & Easy: Made in just over 45 minutes, this recipe is perfect for busy bakers craving something delicious without the hassle.
Crowd-Pleaser: Whether for a party or a cozy family night, these treats are sure to win everyone’s hearts! Serve them warm with ice cream for an extra special touch.
Versatile and Fun: Feel free to swap in almond butter or add your favorite nuts for a personalized twist.
Perfectly Soft Texture: The soft, chewy consistency makes these bars reminiscent of cookies but more substantial, bringing joy with each mouthful.
You can store any leftovers in an airtight container for up to a week, ensuring they remain as delicious as the day they were made. Perfect for sharing, these bars will become an instant favorite, just like my Garlic Butter Lobster or a classic Dark Chocolate Coffin treat!
Peanut Butter Chocolate Chip Cookie Bars Ingredients
For the Batter
- Creamy Peanut Butter – Provides rich flavor and moistness; substitute with almond butter for a nutty twist.
- Unsalted Butter – Adds richness and helps achieve a chewy texture; can substitute with coconut oil for a dairy-free version.
- Granulated Sugar – Sweetens the bars, balancing the nutty flavor; can reduce for a less sweet treat.
- Light Brown Sugar – Contributes a deeper flavor and moisture; replace with dark brown sugar for added richness.
- Eggs – Binds ingredients and provides structure; no substitutes recommended for this recipe.
- Vanilla Extract – Enhances overall flavor; use pure extract for best results.
- All-Purpose Flour – Forms the base and structure of the bars; for gluten-free, use a flour blend.
- Baking Powder – Helps the bars rise; ensure it’s fresh for best results.
- Fine Sea Salt – Balances sweetness and enhances flavors; can use regular table salt if necessary.
For the Mix-ins
- Peanut Butter Chips – Adds additional peanut flavor; substitute with butterscotch chips for variation.
- Semi-Sweet Chocolate Chips – Offers a sweet chocolatey flavor; dark chocolate chips could be used for a richer taste.
These Peanut Butter Chocolate Chip Cookie Bars are deliciously simple, perfect for your next baking adventure!
Step‑by‑Step Instructions for Peanut Butter Chocolate Chip Cookie Bars
Step 1: Preheat the Oven
Begin by preheating your oven to 375°F (190°C). While it warms up, grab a 9×13 inch baking pan and line it with parchment paper, allowing some overhang for easy removal later. This step is crucial for ensuring even baking and easy cleanup, setting the stage for your delicious Peanut Butter Chocolate Chip Cookie Bars.
Step 2: Mix Dry Ingredients
In a large mixing bowl, combine 2 cups of all-purpose flour, 1 teaspoon of baking powder, and ½ teaspoon of fine sea salt. Use a whisk to blend these dry ingredients thoroughly until well mixed. This step not only ensures even distribution but also helps aerate the flour, laying the foundation for a light and chewy texture in your bars.
Step 3: Cream Butter and Peanut Butter
In a separate bowl, cream together ½ cup of softened unsalted butter and 1 cup of creamy peanut butter using a hand mixer or a wooden spoon. Beat the mixture until it becomes smooth and fluffy, usually about 3 minutes. The creamy texture is key here, contributing rich flavor to your Peanut Butter Chocolate Chip Cookie Bars.
Step 4: Incorporate Sugars
Gradually add in ½ cup of granulated sugar and ½ cup of light brown sugar to your creamed butter and peanut butter mixture. Continue mixing at medium speed until it’s light and fluffy, about another 2-3 minutes. This step adds a delicious sweetness and ensures your bars are moist and chewy.
Step 5: Add Eggs and Vanilla
One at a time, add in 2 large eggs, mixing well after each addition. Then, pour in 1 teaspoon of vanilla extract and mix until fully combined. The eggs help bind everything together, giving the bars the perfect structure, while the vanilla enhances the overall flavor profile of your Peanut Butter Chocolate Chip Cookie Bars.
Step 6: Combine Wet and Dry Ingredients
Slowly blend your dry mixture into the wet mixture, mixing until just combined. Be careful not to overmix; you want a thick, cohesive dough. This is a vital step to ensure the best texture in your bars. Once combined, you’ll see the beautiful blend of peanut butter and sugar coming together.
Step 7: Fold in Chips
Gently fold in 1 cup of peanut butter chips and 1 cup of semi-sweet chocolate chips into the dough using a spatula. The folding technique is crucial here, allowing the chips to be evenly distributed without overworking the dough. These chocolatey additions are what make these Peanut Butter Chocolate Chip Cookie Bars truly decadent.
Step 8: Spread into Pan
Transfer the dough into your prepared baking pan, pressing it down evenly with your hands or a spatula. Ensure it covers the bottom of the pan uniformly for consistent baking. This step is essential as it will create the perfect base for your Cookie Bars, ensuring they cook evenly.
Step 9: Bake the Bars
Place the pan in the preheated oven and bake for 25-30 minutes. You’ll know they’re ready when the edges turn golden brown and a toothpick inserted in the center comes out mostly clean. Keep an eye on them as baking times may vary slightly depending on your oven, ensuring perfectly chewy bars.
Step 10: Cool and Cut
Allow the bars to cool in the pan for about 10-15 minutes. Once slightly cooled, use the parchment paper overhang to lift the bars out of the pan. Let them cool completely on a wire rack before cutting them into squares. This final step will make sure your Peanut Butter Chocolate Chip Cookie Bars are ready to be enjoyed at their best texture!

Peanut Butter Chocolate Chip Cookie Bars Variations
Feel free to get creative and customize these delicious bars to suit your taste and dietary needs!
- Nut-Free: Swap out peanut butter for sunflower seed butter for a nut-free option that still packs a delicious punch.
- Dairy-Free: Use coconut oil instead of butter and non-dairy chocolate chips to cater to dairy-free diets without sacrificing flavor! Imagine the smooth richness without a hint of dairy.
- Gluten-Free: Replace all-purpose flour with a gluten-free flour blend to allow everyone to indulge in these sweet treats. The bars will still turn out perfectly soft and chewy!
- Add-Ins: Mix in chopped dark chocolate or a handful of shredded coconut for an exciting texture twist. Each bite will be a delightful surprise!
- Crunchy Texture: Stir in chopped nuts like walnuts or pecans to add a satisfying crunch alongside the gooey chocolate. It’s the perfect way to elevate those comforting cookie bars!
- Spicy Kick: Add a pinch of cayenne pepper or ground ginger to the batter for a unique sweet and spicy flavor profile that will make your taste buds dance!
- Chocolate Swirl: Drizzle some melted chocolate over the top before serving, creating a beautiful and indulgent presentation. Your friends won’t be able to resist!
With these inspired variations, you can personalize your Peanut Butter Chocolate Chip Cookie Bars to accommodate everyone’s tastes. If you’re feeling adventurous, why not try making a batch of my beloved Garlic Butter Lobster for a savory balance to these sweet delights?
Expert Tips for Peanut Butter Chocolate Chip Cookie Bars
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Use Softened Butter: Ensure your butter is softened, not melted; this is crucial for achieving the perfect creamy texture in your Peanut Butter Chocolate Chip Cookie Bars.
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Avoid Overmixing: Once you combine the dry and wet ingredients, mix just until incorporated. Overmixing can lead to dense bars instead of soft and chewy ones.
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Check Baking Time: Keep an eye on the baking time; every oven is different. Pull them out when they’re golden at the edges and mostly clean when tested with a toothpick.
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Cool Properly: Allow the bars to cool in the pan for 10-15 minutes before transferring. This step helps set them, making for easier cutting.
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Storage Secrets: Store in an airtight container at room temperature for up to a week. For longer freshness, refrigerate them, but allow them to come to room temperature before serving.
Make Ahead Options
These Peanut Butter Chocolate Chip Cookie Bars are perfect for busy home cooks looking to save time! You can prepare the dough up to 24 hours in advance; simply follow the instructions up to the mixing step, then tightly cover the bowl with plastic wrap and refrigerate. This will allow the flavors to meld beautifully. When you’re ready to bake, just let the dough sit at room temperature for about 15 minutes before spreading it into the pan and baking as directed. If you want to make the bars further in advance, you can bake them and store the cooled squares in an airtight container for up to 3 days at room temperature, ensuring they remain soft and delicious!
How to Store and Freeze Peanut Butter Chocolate Chip Cookie Bars
Room Temperature: Store the bars in an airtight container at room temperature for up to 1 week. Enjoy them fresh for a delightful treat!
Fridge: For longer freshness, keep the bars in the fridge for up to 2 weeks. Be sure to seal them well to maintain their soft texture.
Freezer: Freeze the cookie bars by wrapping them tightly in plastic wrap and then placing them in a freezer-safe bag. They will stay fresh for up to 3 months.
Reheating: To enjoy a warm treat, microwave individual bars for about 15-20 seconds or until heated through. Enjoy the gooey goodness of your Peanut Butter Chocolate Chip Cookie Bars!
What to Serve with Peanut Butter Chocolate Chip Cookie Bars
Savor the sweet delight of these cookie bars by pairing them with complementary treats that elevate your dessert experience.
- Vanilla Ice Cream: A classic companion, the creamy ice cream contrasts beautifully with the chewy bars, adding a refreshing chill.
- Cold Milk: The ultimate pairing, a glass of cold milk amplifies the flavors and offers a nostalgic touch to each bite.
- Fruity Sorbet: A tangy lemon or raspberry sorbet cuts through the richness, providing a burst of flavor that balances the sweetness.
- Salted Caramel Sauce: Drizzling warm salted caramel over the bars enhances their richness while adding a gourmet twist.
- Whipped Cream: Light and airy whipped cream adds a fluffy texture that complements the dense, chewy bars, making each bite delightful.
- Fresh Berries: Strawberries or raspberries provide a tart contrast, making for a colorful and refreshing addition to your dessert plate.
- Chocolate Drizzle: For chocolate lovers, a simple drizzle of melted chocolate on top adds an extra layer of decadence and visual appeal.
Whichever you choose, each pairing turns your Peanut Butter Chocolate Chip Cookie Bars into an unforgettable sweet experience!

Peanut Butter Chocolate Chip Cookie Bars Recipe FAQs
What type of peanut butter should I use for these cookie bars?
I recommend using creamy peanut butter for a smooth and rich flavor. If you’re looking for a nutty twist, almond butter can be a delightful substitute! Just make sure it’s room temperature for easy mixing.
How should I store the Peanut Butter Chocolate Chip Cookie Bars?
You can store the bars in an airtight container at room temperature for up to 1 week. For longer freshness, refrigerate them, and they should last up to 2 weeks. Just remember to let them sit at room temperature for a bit before serving, so they’re soft and delicious!
Can I freeze the cookie bars?
Absolutely! To freeze the bars, wrap them tightly in plastic wrap and place them in a freezer-safe bag. Properly stored, they can be enjoyed for up to 3 months. When you’re ready to enjoy them, microwave individual bars for about 15-20 seconds or until warmed through, for that fresh-from-the-oven feel.
Why did my cookie bars come out too dry or crumbly?
Dry or crumbly bars can result from overmixing the batter after adding the flour or from baking them too long. To avoid this, mix just until the ingredients are combined and keep an eye on the bars during baking—take them out as soon as the edges are golden and a toothpick comes out mostly clean.
Are there any allergy considerations for this recipe?
This recipe includes peanuts, eggs, and dairy. If you or anyone you’re serving has peanut allergies, you can substitute the peanut butter with sunflower seed butter. Be sure to check all labels for the specific brands you use for any potential allergens, especially if you’re accommodating guests with dietary restrictions.

Irresistibly Soft Peanut Butter Chocolate Chip Cookie Bars
Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C) and line a 9x13 inch baking pan with parchment paper.
- In a large mixing bowl, combine 2 cups of all-purpose flour, 1 teaspoon of baking powder, and ½ teaspoon of fine sea salt. Whisk until well mixed.
- Cream together ½ cup of softened unsalted butter and 1 cup of creamy peanut butter until smooth and fluffy.
- Gradually add in ½ cup of granulated sugar and ½ cup of light brown sugar, mixing until light and fluffy.
- Add 2 large eggs one at a time, followed by 1 teaspoon of vanilla extract, mixing until fully combined.
- Slowly blend the dry mixture into the wet mixture until just combined.
- Gently fold in 1 cup of peanut butter chips and 1 cup of semi-sweet chocolate chips.
- Transfer the dough into the prepared baking pan, pressing down evenly.
- Bake for 25-30 minutes until the edges are golden brown and a toothpick inserted comes out mostly clean.
- Allow the bars to cool in the pan for about 10-15 minutes, then lift out using the parchment and let them cool completely before cutting.

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