Preheat oven to 350°F (175°C) and grease a 9x13 inch baking pan.
In a large mixing bowl, whisk together the melted butter, granulated sugar, and brown sugar until smooth.
Add the eggs one at a time, beating well after each addition, then stir in the vanilla extract and bourbon.
Gently fold in the flour and salt until just combined, being careful not to overmix.
Stir in the chocolate chips and toasted pecans.
Spread the batter evenly into the prepared baking pan.
Bake for 30 to 35 minutes, or until the edges are golden brown and a toothpick inserted into the center comes out with a few moist crumbs.
Allow the bars to cool completely in the pan on a wire rack before cutting into 24 squares.