Chocolate Chip Cookie Bars

Chocolate Chip Cookie Bars

Introduction

These Chocolate Chip Cookie Bars are a simple, crowd-pleasing twist on the classic cookie that yield thick, chewy squares with crisp edges and a soft, slightly gooey center. The aroma of browned butter notes and vanilla fills the kitchen as they bake, and pockets of semi-sweet chocolate melt into ribbons that make each bite irresistible. They are ideal for potlucks, school lunches, or a cozy night in when you want a treat that is easier to slice and share than drop cookies. If you love experimenting with textures or comparisons to other bar-style cookies, you might enjoy trying variations inspired by my other recipes for the best chocolate chip cookie recipe, which explores similar flavor balances.

Ingredients

  • 2 and 1/4 cups all-purpose flour, measured and leveled. Provides structure and that classic cookie crumb.
  • 1 teaspoon baking soda. Helps the bars rise slightly and creates a tender crumb.
  • 1 and 1/2 teaspoons cornstarch. Adds softness and a delicate bite.
  • 1/2 teaspoon salt. Balances sweetness and enhances flavor.
  • 3/4 cup unsalted butter, melted and slightly cooled. Adds richness and chew; melting creates a denser, fudgier texture.
  • 1 cup packed light brown sugar. Adds moisture and caramel notes.
  • 1/3 cup granulated sugar. Gives a touch of crispness to the edges.
  • 1 large egg, at room temperature. Binds ingredients and adds lift.
  • 1 large egg yolk, at room temperature. Extra fat for chewiness and tenderness.
  • 2 teaspoons pure vanilla extract. Brings warmth and depth to the flavor.
  • 1 cup semi-sweet chocolate chips. The classic melty pockets of chocolate throughout.
  • Optional: sprinkle of flaky sea salt. A finishing touch to highlight the chocolate and sweetness.

Step-by-step Instructions

  1. Preheat the oven to 350°F (177°C). Line a 9-inch square baking pan with parchment paper, leaving an overhang for easy lifting.

  2. In a large bowl, whisk together the flour, baking soda, cornstarch, and salt until evenly combined.

  3. In a medium bowl, whisk the melted butter, brown sugar, and granulated sugar until no lumps remain. Make sure the butter is only slightly warm so it does not scramble the eggs in the next step.

  4. Add the egg, extra egg yolk, and vanilla extract to the sugar mixture and whisk until well combined.

  5. Combine the wet ingredients with the dry ingredients, mixing until just incorporated. Do not overmix; a few streaks of flour are fine.

  6. Gently fold in the chocolate chips, distributing them evenly through the dough.

  7. Transfer the dough to the prepared baking pan and press it into an even layer. Use a piece of parchment or the back of a spatula to smooth the surface.

  8. If desired, sprinkle with flaky sea salt and press some additional chocolate chips on top for a finished look.

  9. Bake for 30 to 34 minutes, or until the edges are lightly browned and the center looks set but still soft. Rotate the pan halfway through baking if your oven heats unevenly.

  10. Allow to cool in the pan for at least an hour before lifting out and cutting into squares. Cooling fully helps the bars hold their shape when sliced.

Recipe Details

  • Prep Time: 15 minutes
  • Cook Time: 30 to 34 minutes
  • Total Time: about 47 minutes (including a short cool before handling)
  • Servings: makes about 16 squares
  • Calories: approximately 275 per square (estimate)

Tips, Storage & Variations

  • Tip: Use room temperature eggs so they fold in smoothly with the warm butter. If your butter is too hot, let it cool a minute or two to avoid cooking the eggs.
  • Tip: Pressing a few extra chips on top before baking creates an attractive finished look and ensures chocolate on every square.
  • Storage: Store cooled bars in an airtight container at room temperature for up to 4 days. Separate layers with parchment to prevent sticking.
  • Freezing: Freeze individual squares on a baking sheet until firm, then transfer to a freezer bag for up to 3 months. Thaw at room temperature or warm briefly in a low oven.
  • Flavor variations using only the listed ingredients: add a light sprinkle of flaky sea salt across the top for a sweet and salty contrast, or press extra chocolate chips into the top before baking for more melty pockets. For a slightly chewier bar, press the dough more compactly into the pan before baking.
  • For more ideas on combining textures in chocolate chip treats, see this take on Rice Krispie chocolate chip cookies with a soft chew.

Chocolate Chip Cookie Bars

FAQ

  1. How do I know when the cookie bars are done?
    They are done when the edges are lightly browned and the center looks set but slightly soft. A toothpick will come out with a few moist crumbs but not raw batter.

  2. Can I use salted butter instead of unsalted?
    Yes. If you use salted butter, omit added salt or reduce it slightly to avoid an overly salty result.

  3. Why is cornstarch included in the recipe?
    Cornstarch helps create a tender, soft crumb and slightly thicker texture in the bars.

  4. Can I make these bars ahead of time?
    Yes. Bake, cool fully, then store at room temperature for up to 4 days. For longer storage, freeze as suggested above.

  5. Can I substitute different chocolate chips?
    You can swap for milk or dark chips if you prefer, but do not change quantities.

  6. Do I need to chill the dough before baking?
    No. This recipe is designed to bake straight away; chilling is not necessary.

People Also Ask

  1. What pan size should I use for chocolate chip cookie bars?
    Use a 9-inch square baking pan lined with parchment for easy removal and even baking.

  2. How thick will the cookie bars be in a 9-inch pan?
    They will be about 3/4 to 1 inch thick, depending on how evenly you press the dough.

  3. Can I cut these bars warm?
    It is best to wait at least an hour so they set. Warm bars may crumble when sliced.

  4. Will melted butter affect texture compared to creamed butter?
    Using melted butter yields a denser, chewier bar compared to creamed butter, which creates more lift.

  5. How many chocolate chips should I expect per serving?
    With 1 cup of chips across 16 squares, most pieces will have multiple chips, plus any you press into the top.

  6. Can I double the recipe in a larger pan?
    Yes. For a larger batch, bake in a larger pan and monitor baking time; it may change by several minutes.

  7. Why add an extra egg yolk?
    The additional yolk adds fat and richness, giving the bars a more tender, chewy texture.

  8. Is flaky sea salt necessary?
    No. It is optional, but it enhances flavor by contrasting the sweetness.

Conclusion

These Chocolate Chip Cookie Bars are an easy, reliable dessert that pairs perfectly with a glass of milk or a scoop of ice cream. If you want to explore a softer bar texture with similar flavors, check out this recipe for Soft Chocolate Chip Cookie Bars – Preppy Kitchen for comparison. For another approachable, well-tested variation on bar-style chocolate chip treats, see the version collected at Chocolate Chip Cookie Bars – Our Best Bites. I hope you give this recipe a try and enjoy sharing it with friends and family.

Print

Chocolate Chip Cookie Bars

Thick, chewy chocolate chip cookie bars with crisp edges and a soft center, perfect for sharing.

  • Author: swift-tastywpadmin
  • Prep Time: 15 minutes
  • Cook Time: 34 minutes
  • Total Time: 49 minutes
  • Yield: 16 servings 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

Scale
  • 2 and 1/4 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1 and 1/2 teaspoons cornstarch
  • 1/2 teaspoon salt
  • 3/4 cup unsalted butter, melted and slightly cooled
  • 1 cup packed light brown sugar
  • 1/3 cup granulated sugar
  • 1 large egg, at room temperature
  • 1 large egg yolk, at room temperature
  • 2 teaspoons pure vanilla extract
  • 1 cup semi-sweet chocolate chips
  • Optional: sprinkle of flaky sea salt

Instructions

  1. Preheat the oven to 350°F (177°C). Line a 9-inch square baking pan with parchment paper.
  2. Whisk together the flour, baking soda, cornstarch, and salt in a large bowl.
  3. Mix the melted butter, brown sugar, and granulated sugar in a medium bowl until smooth.
  4. Add the egg, extra egg yolk, and vanilla extract to the sugar mixture and whisk until combined.
  5. Combine the wet and dry ingredients, mixing until just incorporated.
  6. Fold in the chocolate chips until evenly distributed.
  7. Transfer the dough to the prepared baking pan and smooth the surface.
  8. Sprinkle with flaky sea salt if desired.
  9. Bake for 30 to 34 minutes or until edges are lightly browned.
  10. Cool in the pan for at least an hour before cutting into squares.

Notes

Store cooled bars in an airtight container at room temperature for up to 4 days. Freeze individual squares for longer storage.

Nutrition

  • Serving Size: 1 serving
  • Calories: 275
  • Sugar: 18g
  • Sodium: 200mg
  • Fat: 14g
  • Saturated Fat: 8g
  • Unsaturated Fat: 6g
  • Trans Fat: 0g
  • Carbohydrates: 37g
  • Fiber: 1g
  • Protein: 3g
  • Cholesterol: 30mg

Keywords: cookie bars, chocolate chip, dessert, baking, easy recipe

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