01 - Preheat the oven to 350°F. Line a 9x13-inch baking pan with parchment paper, leaving an overhang for easy removal.
02 - In a medium bowl, whisk together flour, baking soda, and salt until evenly mixed.
03 - In a large bowl, whisk melted butter with brown sugar and granulated sugar until smooth and glossy.
04 - Add eggs one at a time into the wet mixture, whisking thoroughly after each addition; then stir in vanilla extract.
05 - Fold the dry ingredients into the wet ingredients using a spatula, mixing just until combined to avoid overworking.
06 - Gently fold the semisweet chocolate chips into the batter ensuring even distribution.
07 - Spread the dough evenly into the prepared pan, smoothing the surface for an even thickness.
08 - Bake for 22 to 25 minutes until edges turn golden and a toothpick inserted into the center comes out with moist crumbs.
09 - Allow bars to cool completely in the pan placed on a wire rack. Lift using parchment overhang and cut into 16 bars.