Classic Homemade Chocolate Chip Cookie Bars

These homemade Chocolate Chip Cookie Bars combine everything you love about classic chocolate chip cookies in one easy-to-bake dessert. With buttery golden edges, soft chewy centers, and plenty of melted chocolate chips, they're perfect for family gatherings, bake sales, lunchbox treats, and weekend baking.

 

Unlike traditional cookies, there's no need to scoop individual portions or bake multiple batches. Simply spread the dough into a baking pan, bake until golden, and cut into squares. Brown sugar adds a delicious caramel-like flavor while melted butter helps create a wonderfully chewy texture.

Why You'll Love This Recipe

• Soft and chewy: Tender centers with lightly golden edges.
• Easy one-pan dessert: No cookie scooping or multiple baking sheets required.
• Rich buttery flavor: Brown sugar and vanilla create classic homemade cookie flavor.
• Loaded with chocolate: Semisweet chocolate chips in every bite.
• Perfect for sharing: Easy to cut into squares for parties and gatherings.
• Freezer-friendly: Individual bars can be frozen for later.

Recipe Information

• Prep Time: 15 minutes
• Bake Time: 25–30 minutes
• Cooling Time: 45 minutes
• Total Time: Approximately 85–90 minutes
• Servings: 16 bars
• Course: Dessert
• Cuisine: American
• Method: Oven Baking

Ingredients

For the Chocolate Chip Cookie Bars

• 2 1/4 cups all-purpose flour
• 1 teaspoon baking soda
• 1 teaspoon cornstarch
• 3/4 teaspoon fine salt
• 3/4 cup unsalted butter, melted and slightly cooled
• 1 cup packed light brown sugar
• 1/2 cup granulated sugar
• 2 large eggs, room temperature
• 2 teaspoons pure vanilla extract
• 1 3/4 cups semisweet chocolate chips, divided

Optional Additions

• 1/2 cup chopped walnuts or pecans
• Flaky sea salt for sprinkling
• Vanilla ice cream for serving

How to Make Chocolate Chip Cookie Bars

Step 1: Preheat the Oven

Preheat your oven to 350°F (175°C). Grease a 9-by-13-inch baking pan and line it with parchment paper, leaving some overhang along the longer sides for easy removal.

Step 2: Combine the Dry Ingredients

In a medium mixing bowl, whisk together the flour, baking soda, cornstarch, and salt. Set aside.

Step 3: Mix the Butter and Sugars

In a large bowl, whisk the melted, slightly cooled butter with the brown sugar and granulated sugar until smooth and evenly combined.

Step 4: Add Eggs and Vanilla

Add the eggs one at a time, whisking after each addition. Stir in the vanilla extract until the mixture is glossy and smooth.

Step 5: Make the Cookie Dough

Add the dry ingredients to the wet ingredients. Fold gently with a spatula until no dry flour remains.

Avoid overmixing, which can create tough cookie bars.

Step 6: Fold in Chocolate Chips

Reserve approximately 1/4 cup chocolate chips for the topping. Fold the remaining chocolate chips into the cookie dough.

Add the optional chopped walnuts or pecans at this stage if desired.

Step 7: Spread into the Baking Pan

Transfer the thick dough to the prepared baking pan. Use a spatula or lightly greased fingertips to spread it into an even layer.

Sprinkle the reserved chocolate chips over the top and press them lightly into the dough.

Step 8: Bake Until Golden

Bake for approximately 25–30 minutes, until the edges are golden brown and the center looks set but remains slightly soft.

A toothpick inserted into the center should come out with a few moist crumbs, not wet batter. Avoid overbaking to preserve the chewy texture.

Step 9: Cool the Cookie Bars

Remove the pan from the oven and place it on a wire rack. Sprinkle with a small amount of flaky sea salt if desired.

Allow the bars to cool in the pan for at least 45 minutes. They will continue firming up as they cool.

Step 10: Slice and Serve

Lift the cooled cookie slab out of the pan using the parchment paper overhang.

Cut into 16 equal squares with a sharp knife. Serve at room temperature or slightly warm with a scoop of vanilla ice cream.

Helpful Tips for the Best Cookie Bars

• Measure flour carefully: Spoon flour into the measuring cup and level it to prevent dry bars.
• Cool the melted butter: Very hot butter can affect the dough texture.
• Use brown sugar: It contributes moisture and a delicious caramel flavor.
• Don't overmix: Gentle mixing helps maintain a tender texture.
• Line the pan: Parchment paper makes removing and slicing easier.
• Avoid overbaking: Remove the bars when the center is just set.
• Let them cool: Cooling helps create clean slices and a chewy consistency.

Delicious Chocolate Chip Cookie Bar Variations

Double Chocolate Cookie Bars

Replace 1/4 cup of the flour with unsweetened cocoa powder for a rich chocolate cookie base.

Peanut Butter Chocolate Chip Bars

Replace 1/4 cup of the melted butter with 1/4 cup creamy peanut butter for a nutty flavor.

White Chocolate Macadamia Cookie Bars

Replace semisweet chocolate chips with white chocolate chips and add 1/2 cup chopped macadamia nuts.

Chocolate Chip Walnut Bars

Fold 1/2 cup chopped toasted walnuts into the dough for extra crunch and nutty flavor.

What to Serve with Chocolate Chip Cookie Bars

These sweet, chewy bars pair beautifully with simple desserts and beverages.

• Cold milk
• Vanilla bean ice cream
• Hot coffee
• Fresh strawberries
• Lightly sweetened whipped cream

Storage and Freezing Instructions

Room Temperature

Store completely cooled cookie bars in an airtight container at room temperature for up to 4 days. Place parchment paper between layers to prevent sticking.

Refrigerator

For longer storage, refrigerate the bars in a sealed container for up to 1 week. Allow them to return to room temperature before serving for a softer texture.

Freezer

Wrap individual bars tightly and freeze in a freezer-safe container for up to 3 months for best quality.

Thaw at room temperature before serving.

Reheating

Warm an individual cookie bar in the microwave for approximately 8–12 seconds for a soft center and slightly melted chocolate chips.

Frequently Asked Questions

How do I keep chocolate chip cookie bars soft?

Use the recommended brown sugar and butter, avoid adding too much flour, and remove the bars from the oven when the center is just set.

Why are my cookie bars dry?

Too much flour or overbaking can create dry bars. Measure flour accurately and begin checking for doneness at 25 minutes.

Can I use chocolate chunks instead of chips?

Yes. Chopped semisweet or dark chocolate works beautifully and creates larger pockets of melted chocolate.

Can I make cookie bars ahead of time?

Absolutely. Bake them one day ahead and store in an airtight container once completely cooled.

Can I freeze chocolate chip cookie bars?

Yes. Freeze individually wrapped bars for up to 3 months for best quality and thaw before serving.

Final Thoughts

Classic Homemade Chocolate Chip Cookie Bars deliver the buttery flavor, chewy texture, and melted chocolate goodness of traditional chocolate chip cookies in one easy pan.

Perfect for parties, bake sales, family gatherings, or everyday treats, these homemade cookie bars are simple to prepare and delicious to share.