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Golden-brown Chocolate Chip Cookie Bars, perfectly sliced into squares in a baking pan, with one bar slightly lifted, ready to serve.

Chocolate Chip Cookie Bars

There's nothing quite like the comforting aroma of freshly baked goods, and these Chocolate Chip Cookie Bars deliver every single time. If you're looking for a dessert that's quick, easy, and always a crowd-pleaser, then you've found your new favorite recipe. Forget scooping individual cookies; we're talking about a glorious, soft, and chewy slab of pure happiness you can slice and serve.
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 16 bars

Ingredients
  

  • 2.5 cups all-purpose flour good quality
  • 1 tsp baking soda
  • 0.5 tsp kosher salt If using table salt, use a bit less because it's finer.
  • 1 cup unsalted butter melted and slightly cooled
  • 1.5 cups brown sugar
  • 0.5 cup white sugar
  • 2 large eggs
  • 2 tsp vanilla extract
  • 1.5 cups chocolate chips semi-sweet, dark, milk, or a mix
  • 0.5 cup toffee bits optional, for extra flavor and crunch

Instructions
 

  • Preheat your oven to 350°F (175°C). Line a 9x13 inch baking pan with parchment paper or foil, leaving an overhang on the sides. This makes lifting the bars out much easier. You can also lightly grease the pan if you don't have paper.
  • In a medium bowl, whisk together the all-purpose flour, baking soda, and kosher salt until they are well combined. Set this mixture aside.
  • In a large mixing bowl, combine the melted and slightly cooled butter with both the brown sugar and white sugar. Mix thoroughly until the sugars are completely incorporated and the mixture is smooth.
  • Add the eggs to the butter and sugar mixture, one at a time, mixing well after each addition. Stir in the vanilla extract until it's fully combined.
  • Gradually add the dry flour mixture to the wet ingredients. Mix on low speed, or by hand, until just combined. Be careful not to overmix the dough, as this can lead to tough cookie bars.
  • Stir in the chocolate chips until they are evenly distributed throughout the dough. If you're using optional toffee bits, stir those in now as well, or save some to sprinkle on top.
  • Press the cookie dough evenly into your prepared 9x13 inch baking pan. Make sure the surface is relatively flat for even baking. If you saved any chocolate chips or toffee bits, sprinkle them over the top now.
  • Bake for 25 to 35 minutes. Start checking at 25 minutes. The edges should be golden brown, and the center will look set but still soft. It will seem a little underbaked, but that's what gives them their amazing chewy texture after cooling.
  • Remove the pan from the oven and let the bars cool completely on a wire rack before attempting to cut them. This is the hardest part, but it's crucial! Cutting them too soon will result in a gooey, crumbly mess. Patience is key for perfect squares.
  • Once fully cooled, use the parchment paper overhang to lift the entire slab of cookie bars out of the pan. Place them on a cutting board and slice into squares.

Notes

Tips for the Best Results: Don't overbake; the center should look slightly underdone and soft when removed from the oven. Cool melted butter slightly before mixing with sugars and eggs to prevent cooking the eggs. Always cool bars completely before cutting to ensure they firm up and achieve their chewy texture. Use parchment paper or foil with an overhang for easy removal and clean-up. Store leftover cookie bars in an airtight container at room temperature for up to 3-4 days, or freeze for longer storage.
Variations: Experiment with different types of chocolate chips (white, milk, dark) or add other mix-ins like crushed pretzels, chopped nuts (walnuts, pecans), or sprinkles. For an autumn twist, add cinnamon and dried cranberries. A layer of caramel bits can be pressed into the middle for a gooey center. For a gluten-free option, swap all-purpose flour for a 1:1 gluten-free baking flour blend containing xanthan gum.
FAQ: You can use any combination of chocolate chips. Store leftovers in an airtight container at room temperature for 3-4 days, or freeze for up to 3 months. If bars are too gooey, they likely need more cooling time; if still too gooey after cooling, they might have been slightly underbaked, so add 5-10 minutes to baking next time.