High Altitude Chocolate Chip Cookie Bars


  • 2 cups + 2 tablespoons all purpose flour
  • 1/2 teaspoon kosher salt
  • 1/2 teaspoon baking soda
  • 12 tablespoons unsalted butter, melted and cooled slightly
  • 1 cup brown sugar
  • 1/3 cup granulated sugar
  • 1 large egg
  • 1 large egg yolk
  • 1 tablespoon vanilla extract
  • 1 1/4 cup mini chocolate chips (or your favorite chocolate chip)


  1. Preheat the oven to 325F degrees.
  2. Lightly butter a 9X13-inch baking pan or line it with parchment paper.
  3. Mix the flour, salt, and baking soda together in medium bowl; set aside.
  4. With a hand mixer, whisk the melted butter and both the brown and granulated sugar in a large bowl until combined. Add the egg, egg yolk, and vanilla and mix well.
  5. Add the flour mixture and mix just until combined, taking care not to over mix. Fold in the chocolate chips.
  6. Evenly press the cooking dough into the prepared pan, smoothing the top with the spatula or wooden spoon.
  7. Bake in a preheated oven for 22-26 minutes just until the top of the bars is starting to brown. Remove the bars from the oven and let fully cool before cutting into 24 squares.