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Chocolate Chip Cookie Bars for Parties

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Soft, chewy chocolate chip cookie bars that melt in your mouth — easy to make, bakery-style, and loaded with chocolate in every bite.

Ingredients

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  • ¾ cup unsalted butter, melted

  • ¾ cup brown sugar

  • ¼ cup granulated sugar

  • 1 large egg

  • 1 egg yolk

  • 1 tbsp vanilla extract

  • 2 cups all-purpose flour

  • 1 tbsp cornstarch

  • ½ tsp baking soda

  • ½ tsp salt

  • 1 to cups semi-sweet chocolate chips

Instructions

  • Preheat oven to 325°F. Line a 9×9 pan with parchment.

  • In a large bowl, whisk melted butter, brown sugar, and granulated sugar until smooth.

  • Add egg, yolk, and vanilla. Mix until creamy.

  • Stir in flour, cornstarch, baking soda, and salt until a thick dough forms.

  • Fold in chocolate chips.

  • Press dough into pan. Bake 25–30 minutes, until center is just set.

  • Cool in pan 30 minutes before slicing.

Notes

Store in an airtight container for up to 4 days. Freeze for up to 2 months. Reheat before serving for extra gooeyness.