1. What is the best classic chocolate chip cookie bars recipe?

The best classic chocolate chip cookie bars recipe is one that balances flavor and texture. My version uses melted butter, brown sugar, and an extra egg yolk to keep the bars chewy. Cornstarch is the secret ingredient that prevents dryness, while a sprinkle of sea salt enhances the chocolate flavor. These simple steps turn classic chocolate chip cookie bars into a treat that feels bakery-worthy every time.

2. Can I bake chocolate chip cookie bars in a 9x13 pan?

Yes, a 9x13 pan is actually ideal for baking classic chocolate chip cookie bars. It creates even layers that are golden at the edges but soft in the middle. The size also yields plenty of bars for sharing at gatherings or storing for later. To ensure success, line the pan with parchment paper for easy lifting, and don’t overbake. When baked just right, classic chocolate chip cookie bars in a 9x13 pan are always a crowd-pleaser.

3. Is there a quick 5 ingredient version of chocolate chip cookie bars?

Absolutely! You can make a simple five-ingredient version of classic chocolate chip cookie bars using just butter, brown sugar, flour, eggs, and chocolate chips. While it skips a few extras like vanilla or cornstarch, it still delivers that chewy, chocolate-packed flavor. This shortcut recipe is perfect for busy days or when you want a no-fuss dessert that tastes just as comforting as traditional classic chocolate chip cookie bars.

4. What makes the best chocolate chip cookie bars in a 9x13 pan stand out?

The best chocolate chip cookie bars in a 9x13 pan stand out because they combine chewy centers with golden edges. The melted butter gives richness, while the mix of brown and white sugar builds depth of flavor. Pressing a few extra chocolate chips on top before baking ensures a picture-perfect look. When cooled and sliced, these classic chocolate chip cookie bars hold their shape beautifully, making them a reliable choice for any occasion.

The Best Classic Chocolate Chip Cookie Bars You’ll Ever Bake

Ingredients

Scale

2 and 1/4 cups (281g) all-purpose flour (spooned & leveled)
1 teaspoon baking soda
1 and 1/2 teaspoons cornstarch
1/2 teaspoon salt
3/4 cup (12 Tbsp; 170g) unsalted butter, melted and slightly cooled
1 cup (200g) packed light brown sugar
1/3 cup (67g) granulated sugar
1 large egg plus 1 large egg yolk, at room temperature
2 teaspoons pure vanilla extract
1 cup (180g) semi-sweet chocolate chips
Optional: sprinkle of flaky sea salt

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Instructions

Preheat the oven to 350°F (177°C). Line a 9×13 pan with parchment, leaving overhang.
Whisk flour, baking soda, cornstarch, and salt in a large bowl.
In another bowl, whisk melted butter, brown sugar, and granulated sugar until smooth.
Whisk in the egg, extra yolk, and vanilla.
Pour wet into dry; mix until combined. Fold in chocolate chips.
Press dough evenly into the pan; add extra chips and a pinch of flaky salt.
Bake 30–34 minutes until edges are lightly browned; center should look just set.

Cool in pan on a rack for at least 1 hour. Lift out and slice into squares.

Notes

Underbake slightly for extra chew.
Store covered at room temperature up to 1 week.
Great with vanilla ice cream or a drizzle of melted chocolate.
Measure flour by spoon-and-level to avoid dry, cakey bars.

Author: Karim
Prep Time: 15 minutes
Cook Time: 30 minutes
Category: Dessert
Method: Baking
Cuisine: American

Nutrition

Serving Size: per serving – 1 bar
Calories: 230
Sugar: 18g
Sodium: 110MG
Fat: 11g
Saturated Fat: 6g
Unsaturated Fat: 4g
Trans Fat: 0g
Carbohydrates: 30g
Fiber: 1g
Protein: 3g
Cholesterol: 35mg