Peanut Butter Stuffed Chocolate Chip Cookie Bars
There’s something undeniably comforting about the combination of peanut butter and chocolate. When you take that classic duo and transform it into a decadent bar, you create a dessert that is not only delightful but also perfect for sharing—or not! These Peanut Butter Stuffed Chocolate Chip Cookie Bars are gooey, rich, and packed with flavor. They’re a treat that’s sure to impress everyone from family members to friends, and they’re great for any occasion. So roll up your sleeves, grab your mixing bowl, and let’s dive into this delicious recipe that will have everyone asking for seconds.
What You’ll Love About This Recipe
These Peanut Butter Stuffed Chocolate Chip Cookie Bars are a heavenly treat that combines the soft, chewy goodness of chocolate chip cookies with a creamy peanut butter surprise. Here are some delightful aspects of this recipe:
- Easy to Make: This recipe comes together in one bowl, making cleanup a breeze.
- Versatile: You can customize the filling with different types of nut butters or chocolate.
- Perfect for Sharing: Cut them into squares and share with friends or keep them all to yourself!
- Rich Flavor: The use of dark brown sugar adds a depth of flavor that pairs wonderfully with the peanut butter.
The Essentials
To create these delicious Peanut Butter Stuffed Chocolate Chip Cookie Bars, you will need the following ingredients:
- 1-1/4 cup all-purpose flour
- 1 cup white whole wheat flour
- 1 teaspoon baking soda
- 1 teaspoon kosher salt
- 1 cup unsalted butter, room temperature
- 1-1/2 cups dark brown sugar
- 1 teaspoon vanilla bean paste
- 2 large eggs
- 1 package peanut butter Nestle DelightFulls
- 1 cup mini dark chocolate chips
Must-Have Equipment
Before you get started, make sure you have the following equipment on hand:
- Mixing Bowl: A large bowl to combine all your ingredients easily.
- Measuring Cups and Spoons: For accurate measurements of ingredients.
- Spatula: To mix and fold the dough together.
- Baking Pan: A 9×13 inch pan works perfectly for these cookie bars.
- Oven: Preheat it to ensure even baking.
Step-by-Step: Peanut Butter Stuffed Chocolate Chip Cookie Bars

Step 1: Preheat Your Oven
Start by preheating your oven to 350°F (175°C). This ensures that your cookie bars will bake evenly.
Step 2: Prepare Your Baking Pan
Grease a 9×13 inch baking pan with butter or line it with parchment paper for easy removal of the bars later.
Step 3: Mix the Dry Ingredients
In a mixing bowl, whisk together the all-purpose flour, white whole wheat flour, baking soda, and kosher salt until well combined.
Step 4: Cream the Butter and Sugar
In a separate large bowl, beat the room temperature unsalted butter and dark brown sugar with a spatula or mixer until light and fluffy.
Step 5: Add the Eggs and Vanilla
Mix in the vanilla bean paste and the two large eggs, one at a time, until everything is well combined.
Step 6: Combine Wet and Dry Ingredients
Gradually add the dry flour mixture into the wet mixture, stirring until just combined. Be careful not to overmix.
Step 7: Fold in the Chocolate Chips
Gently fold in the mini dark chocolate chips, ensuring they are evenly distributed throughout the dough.
Step 8: Assemble the Bars
Spread half of the cookie dough into the prepared baking pan, creating an even layer. Place the peanut butter Nestle DelightFulls evenly over the top, then dollop the remaining cookie dough over the peanut butter, spreading it gently to cover.
Step 9: Bake
Place the pan in the preheated oven and bake for 25-30 minutes, or until the edges are golden brown and a toothpick inserted into the center comes out clean.
Step 10: Cool and Cut
Allow the bars to cool in the pan for about 10 minutes before transferring them to a wire rack to cool completely. Once cooled, cut them into squares and enjoy!
Smart Substitutions

If you want to customize or adjust this recipe, consider the following substitutions:
- Flours: You can substitute all-purpose flour with gluten-free flour for a gluten-free version.
- Butter: Coconut oil can be used in place of unsalted butter for a dairy-free option.
- Chocolate Chips: Use milk chocolate chips if you prefer a sweeter treat.
- Nut Butter: Almond butter or cashew butter can be used instead of peanut butter for a different flavor.
Troubles You Can Avoid
When making your Peanut Butter Stuffed Chocolate Chip Cookie Bars, keep these tips in mind to avoid common pitfalls:
- Ensure your butter is at room temperature for easy mixing.
- Don’t overmix the dough to maintain a chewy texture.
- Allow the bars to cool before cutting to prevent them from falling apart.
- Be mindful of baking time; overbaking will lead to dry bars.
Meal Prep & Storage Notes
To keep your Peanut Butter Stuffed Chocolate Chip Cookie Bars fresh and delicious, follow these tips:
Store the cooled bars in an airtight container at room temperature for up to 5 days. If you want to keep them longer, you can freeze the bars. Just wrap them tightly in plastic wrap and then in aluminum foil, and store them in the freezer for up to 3 months. When you’re ready to enjoy, simply thaw at room temperature or warm them in the microwave for a few seconds.
Troubleshooting Q&A
Why are my cookie bars dry?
Overbaking is usually the culprit for dry bars. Make sure to check for doneness a few minutes before the recommended baking time.
Can I use regular peanut butter instead of the Nestle DelightFulls?
Yes, but the texture and flavor will differ. The DelightFulls provide a creamy, melty center that is hard to replicate with regular peanut butter.
How do I know when the bars are done baking?
The edges should be golden brown, and a toothpick inserted into the center should come out mostly clean with a few moist crumbs.
Can I make these bars ahead of time?
Absolutely! These bars can be made a day in advance. Just store them in an airtight container and enjoy them the next day.
Cook This Next
If you enjoyed this recipe, consider trying these delicious treats next:
- Classic Chocolate Chip Cookies
- Soft and Chewy Peanut Butter Cookies
- Fudgy Brownies
- Oatmeal Raisin Cookies
Bring It to the Table
These Peanut Butter Stuffed Chocolate Chip Cookie Bars are not just a treat; they are a reason to gather with family and friends. Whether it’s a casual get-together, a birthday celebration, or simply a cozy evening at home, these bars will be a hit. Their rich, gooey center and chewy edges are the perfect combination that will leave everyone reaching for another piece. Serve them warm with a scoop of vanilla ice cream on the side for an ultimate dessert experience that’s sure to make any occasion special.
In conclusion, making Peanut Butter Stuffed Chocolate Chip Cookie Bars is an easy and rewarding baking project. With simple ingredients and straightforward steps, you can create a dessert that is both indulgent and comforting. So gather your ingredients, embrace the joy of baking, and treat yourself to these delicious bars that will surely become a favorite in your home. Happy baking!

Peanut Butter Stuffed Chocolate Chip Cookie Bars
Ingredients
- 1-1/4 cup all-purpose flour
- 1 cup white whole wheat flour
- 1 teaspoon baking soda
- 1 teaspoon kosher salt
- 1 cup unsalted butter room temperature
- 1-1/2 cups dark brown sugar
- 1 teaspoon vanilla bean paste
- 2 large eggs
- 1 package peanut butter Nestle DelightFulls
- 1 cup mini dark chocolate chips
Instructions
- Preheat your oven to 350°F (175°C) to ensure even baking.
- Grease a 9x13 inch baking pan with butter or line it with parchment paper for easy removal later.
- In a mixing bowl, whisk together the all-purpose flour, white whole wheat flour, baking soda, and kosher salt until well combined.
- In a separate large bowl, beat the room temperature unsalted butter and dark brown sugar with a spatula or mixer until light and fluffy.
- Mix in the vanilla bean paste and the two large eggs, one at a time, until everything is well combined.
- Gradually add the dry flour mixture into the wet mixture, stirring until just combined. Be careful not to overmix.
- Gently fold in the mini dark chocolate chips, ensuring they are evenly distributed throughout the dough.
- Spread half of the cookie dough into the prepared baking pan, creating an even layer. Place the peanut butter Nestle DelightFulls evenly over the top, then dollop the remaining cookie dough over the peanut butter, spreading it gently to cover.
- Bake in the preheated oven for 25-30 minutes, or until the edges are golden brown and a toothpick inserted into the center comes out clean.
- Allow the bars to cool in the pan for about 10 minutes before transferring them to a wire rack to cool completely. Once cooled, cut them into squares and enjoy!
Equipment
- Mixing Bowl
- Measuring Cups and Spoons
- Spatula
- Baking Pan
- Oven
Notes
- Store cooled bars in an airtight container at room temperature for up to 5 days or freeze for up to 3 months.
- Substitute gluten-free flour or coconut oil for dietary preferences or restrictions.
- Do not overmix dough to keep bars chewy and moist.
- Use milk chocolate chips or different nut butters for flavor variations.
- Allow bars to cool completely before cutting to prevent them from falling apart.

