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A stack of 3 chewy chocolate chip cookie bars with a glass of milk.
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Chocolate Chip Cookie Bars

Chocolate chip cookie bars are soft, chewy, and easier than making traditional cookies. Skip the process of chilling the dough and forming it into balls - and bake your cookie dough in a 9x13 inch pan instead. 
Course Dessert
Cuisine American
Keyword 9x13, Cookie Bars
Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Servings 15 bars
Calories 392kcal

Ingredients

  • 3 cups all-purpose flour
  • 1 tablespoon cornstarch
  • 1 teaspoon baking powder
  • ½ teaspoon salt
  • 1 cup unsalted butter , melted & cooled
  • 1 cup brown sugar
  • ½ cup white sugar
  • 2 large eggs
  • 2 large egg yolks , in addition to the other 2 eggs (discard the whites)
  • 2 teaspoons vanilla extract
  • 1 ½ cups chocolate chips

Instructions

  • Preheat the oven to 350F degrees.
  • Line a 9x13 inch pan with parchment paper leaving an overhang around the sides. Or line with aluminum foil and lightly spray with cooking spray.
  • In a medium bowl whisk together the flour, cornstarch, baking powder and salt.
  • In a large bowl whisk together the melted butter and sugars (or use an electric mixer).
  • Whisk/beat in the eggs, egg yolks and vanilla extract.
  • Stir (or beat) in the flour mixture about ½ at a time.
  • Fold in the chocolate chips using a rubber spatula or wooden spoon.
  • Spoon the batter into the lined pan and spread the top smooth.
  • Bake in the preheated oven for 32-37 minutes, or until the top looks set.* Baking for longer will lead to less gooey/chewy bars.
  • Cool fully before cutting for clean slices, or cool for at least 30 minutes before slicing.

Notes

*Baking in a ceramic or glass pan generally means the bars will bake for 3-5 minutes longer.
This recipe can be easily halved and baked in an 8x8 or 9x9 inch pan. The bake time will be about the same, or a little shorter. 
Store in an airtight container at room temperature for up to 4 days. Bars freeze well and can be thawed in the fridge. 

Nutrition

Calories: 392kcal | Carbohydrates: 53g | Protein: 5g | Fat: 18g | Saturated Fat: 11g | Cholesterol: 88mg | Sodium: 107mg | Potassium: 85mg | Fiber: 1g | Sugar: 32g | Vitamin A: 490IU | Vitamin C: 0.1mg | Calcium: 56mg | Iron: 1.7mg