A delicious, chewy dessert with a perfect balance of peanut butter and chocolate. These cookie bars are easy to make and incredibly satisfying.
Introduction
Peanut Butter Chocolate Chip Cookie Bars are a delightful treat that combines the creamy richness of peanut butter with the gooey goodness of chocolate chips. Perfect for any occasion, these bars are easy to make and loved by kids and adults alike. Whether you’re hosting a gathering, looking for a comforting snack, or craving a quick dessert, this recipe will not disappoint.
What Are Peanut Butter Chocolate Chip Cookie Bars?
These bars are a hybrid between classic peanut butter cookies and chocolate chip cookies, baked into a thick, chewy bar form. Unlike traditional cookies, cookie bars are baked in a single pan and then cut into squares, making them convenient for serving and storage.
The Origin and History of Peanut Butter and Chocolate Desserts
The combination of peanut butter and chocolate has a long history in American cuisine. The first known commercial peanut butter and chocolate confection was created in the early 20th century when peanut butter became a popular pantry staple. The Reese’s Peanut Butter Cup, introduced in the 1920s, solidified the pairing as a classic favorite. Over time, bakers have developed countless variations, including cookies, brownies, and cookie bars.
Seasonal and Cultural Relevance
These cookie bars are perfect for any season but are especially popular during the holidays, bake sales, and back-to-school seasons. Many families bake them for Christmas cookie exchanges or as an after-school snack.

Key Ingredients
- Peanut Butter: Creamy peanut butter is best for a smooth texture, while chunky peanut butter adds a bit of crunch.
- Chocolate Chips: Semi-sweet, milk chocolate, or dark chocolate chips work well.
- Flour: All-purpose flour provides structure.
- Sugar: A mix of brown and white sugar enhances flavor and chewiness.
- Eggs: Helps bind the ingredients.
- Baking Powder: Adds lift to the bars.
- Vanilla Extract: Enhances the overall flavor.
- Butter: Adds richness and softness.
Nutritional Breakdown
These bars provide a balance of protein from peanut butter and energy from sugar and flour. However, they should be enjoyed in moderation due to their calorie content.
Step-by-Step Preparation
Ingredients
- 1 cup creamy peanut butter
- 1/2 cup unsalted butter, softened
- 1 cup brown sugar
- 1/2 cup granulated sugar
- 2 eggs
- 2 tsp vanilla extract
- 1 1/2 cups all-purpose flour
- 1 tsp baking powder
- 1/2 tsp salt
- 1 cup chocolate chips
Instructions
- Preheat the Oven: Set your oven to 350°F (175°C). Grease a 9×13-inch baking pan.
- Mix Wet Ingredients: In a large bowl, beat the peanut butter, butter, brown sugar, and granulated sugar until creamy.
- Add Eggs and Vanilla: Mix in the eggs one at a time, followed by vanilla extract.
- Combine Dry Ingredients: In a separate bowl, whisk together flour, baking powder, and salt.
- Mix Everything Together: Gradually add the dry ingredients to the wet ingredients, stirring until well combined.
- Add Chocolate Chips: Fold in the chocolate chips.
- Bake: Spread the dough evenly into the prepared pan. Bake for 25-30 minutes or until golden brown.
- Cool and Serve: Let the bars cool before cutting into squares.
Tools and Techniques
Essential Tools
- Mixing bowls
- Electric mixer
- Baking pan
- Spatula
- Measuring cups and spoons
Special Techniques
- Creaming butter and sugar for a soft, chewy texture.
- Using parchment paper for easy removal.
Variations and Substitutions
- Gluten-Free: Use a 1:1 gluten-free flour blend.
- Vegan: Substitute eggs with flax eggs and use dairy-free chocolate chips.
- Nut-Free: Use sunflower seed butter instead of peanut butter.
Best Pairings and Serving Suggestions
- Serve warm with a scoop of vanilla ice cream.
- Enjoy with a cold glass of milk.
- Pack as a lunchbox treat.
Comparison with Similar Recipes
These bars differ from brownies, which have a denser texture, and traditional peanut butter cookies, which are thinner and crispier.
Health and Wellness Aspects
- Protein Source: Peanut butter provides protein.
- Energy Boosting: Carbs from flour and sugar offer a quick energy source.
- Moderation Recommended: Due to sugar content, enjoy as an occasional treat.

Frequently Asked Questions (FAQs)
What are the characteristics of peanut butter cookies? They are rich, nutty, and slightly chewy with a hint of sweetness.
How long to bake peanut butter bar cookies? Bake at 350°F for 25-30 minutes until golden brown.
What was the purpose of the chocolate chip cookie? Originally, chocolate chip cookies were created as a happy accident when Ruth Wakefield added chocolate chunks to her butter cookie dough.
What is peanut butter chocolate chip cookies’ nutrition? They provide protein, healthy fats, and carbohydrates but should be consumed in moderation due to sugar and calorie content.
Storage and Leftovers
- Store in an airtight container at room temperature for up to 5 days.
- Freeze for up to 3 months.
- Reheat in the microwave for a few seconds to restore softness.
Presentation Tips
- Dust with powdered sugar for a decorative touch.
- Drizzle with melted chocolate for extra decadence.
Fun Facts
- Peanut butter was originally used as a protein source for people who couldn’t chew meat.
- The first peanut butter cookie recipe appeared in 1916.
Suggested Recipes
For more savory recipes you can also check my friend Alicia’s blog here www.ledstk.com