These peanut butter chocolate chip cookie bars are soft, chewy, and packed with rich peanut butter flavor and melty chocolate chips in every bite. They combine the classic taste of peanut butter cookies with the ease of a simple bar recipe, making them perfect for gatherings, lunchboxes, or a quick homemade dessert.
Why You’ll Love This Recipe
Easy to make with simple pantry ingredients
No need to chill the dough
Soft and chewy texture with slightly crisp edges
Perfect balance of sweet chocolate and salty peanut butter
Great for parties, potlucks, and bake sales
Easy to slice and serve
Freezer-friendly for make-ahead desserts
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
1 cup (250 g) creamy peanut butter
1/2 cup (113 g) unsalted butter, softened
3/4 cup (150 g) granulated sugar
1/2 cup (100 g) packed light brown sugar
2 large eggs, room temperature
2 teaspoons pure vanilla extract
1 3/4 cups (220 g) all-purpose flour
1 teaspoon baking soda
1/2 teaspoon baking powder
1/2 teaspoon salt
1 1/2 cups (270 g) semi-sweet chocolate chips
Directions
Preheat your oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper or lightly grease it.
In a large mixing bowl, cream together the softened butter and peanut butter until smooth and fluffy.
Add the granulated sugar and brown sugar. Beat until well combined and creamy.
Mix in the eggs one at a time, beating well after each addition. Stir in the vanilla extract.
In a separate bowl, whisk together the flour, baking soda, baking powder, and salt.
Gradually add the dry ingredients to the wet ingredients, mixing just until combined. Do not overmix.
Fold in the chocolate chips evenly throughout the batter.
Spread the dough evenly into the prepared baking pan, smoothing the top with a spatula.
Bake for 25–30 minutes, or until the edges are golden brown and a toothpick inserted in the center comes out with a few moist crumbs.
Allow the bars to cool completely in the pan before slicing into squares or rectangles.
Servings and timing
Servings: 16 bars
Preparation time: 15 minutes
Baking time: 25–30 minutes
Cooling time: 45–60 minutes
Total time: Approximately 1 hour 30 minutes
Variations
Add 1/2 cup chopped roasted peanuts for extra crunch.
Swirl 1/3 cup melted chocolate on top before baking for a decorative finish.
Substitute half of the chocolate chips with peanut butter chips for a richer flavor.
Sprinkle a light pinch of flaky sea salt on top before baking for a sweet-salty contrast.
Mix in 1/2 cup chopped walnuts or pecans for added texture.
Storage/Reheating
Store the cookie bars in an airtight container at room temperature for up to 4 days.
For longer storage, refrigerate them for up to 1 week. Allow them to come to room temperature before serving for the best texture.
To freeze, wrap individual bars tightly in plastic wrap and place them in a freezer-safe container. Freeze for up to 3 months. Thaw at room temperature.
To reheat, microwave a single bar for 10–15 seconds to make it warm and slightly gooey.
FAQs
Can I use natural peanut butter?
Yes, but make sure it is well stirred and not too oily. Natural peanut butter may create a slightly softer texture.
Can I make these bars gluten-free?
Yes, substitute the all-purpose flour with a 1:1 gluten-free baking flour blend.
Why are my cookie bars dry?
Overbaking is usually the cause. Remove them from the oven when the center still has a few moist crumbs.
Can I double this recipe?
Yes, you can double it and bake in a larger sheet pan. Adjust baking time as needed and watch carefully.
Can I use crunchy peanut butter?
Yes, crunchy peanut butter adds extra texture and works well in this recipe.
How do I know when the bars are done?
The edges should be golden brown, and a toothpick inserted in the center should come out with a few moist crumbs.
Can I reduce the sugar?
You can slightly reduce the sugar by 1/4 cup total, but it may affect texture and moisture.
Do I need to chill the dough?
No, this recipe does not require chilling. It can go straight into the oven.
Can I add other mix-ins?
Yes, you can add chopped nuts, white chocolate chips, or even small chocolate chunks.
Why did my bars sink in the middle?
They may have been underbaked or the oven temperature may have been too low. Ensure proper baking time and accurate oven temperature.
Conclusion
Peanut butter chocolate chip cookie bars are the perfect combination of simplicity and indulgence. With their rich peanut butter base and pockets of melted chocolate, they deliver classic cookie flavor in an easy-to-slice bar form. Whether you are baking for a family dessert or a special occasion, this recipe guarantees soft, chewy, and satisfying results every time.
Soft and chewy peanut butter cookie bars loaded with melty chocolate chips, combining rich peanut butter flavor with the ease of a simple slice-and-serve dessert.
Ingredients
1 cup (250 g) creamy peanut butter
1/2 cup (113 g) unsalted butter, softened
3/4 cup (150 g) granulated sugar
1/2 cup (100 g) packed light brown sugar
2 large eggs, room temperature
2 teaspoons pure vanilla extract
1 3/4 cups (220 g) all-purpose flour
1 teaspoon baking soda
1/2 teaspoon baking powder
1/2 teaspoon salt
1 1/2 cups (270 g) semi-sweet chocolate chips
Instructions
Preheat oven to 350°F (175°C). Line or grease a 9×13-inch baking pan.
Cream together softened butter and peanut butter until smooth and fluffy.
Add granulated sugar and brown sugar, beating until creamy.
Mix in eggs one at a time, then stir in vanilla extract.
In a separate bowl, whisk flour, baking soda, baking powder, and salt.
Gradually mix dry ingredients into wet ingredients until just combined.
Fold in chocolate chips evenly.
Spread dough evenly into prepared pan and smooth the top.
Bake for 25–30 minutes until edges are golden and a toothpick inserted in the center comes out with a few moist crumbs.
Cool completely before slicing into bars.
Notes
Avoid overbaking to keep bars soft and chewy.
Natural or crunchy peanut butter can be used for texture variation.
Sprinkle flaky sea salt on top before baking for added contrast.
Bars freeze well for up to 3 months.
Allow full cooling before cutting for clean slices.
