01 - Preheat your oven to 175°C (350°F). Line a 9x13-inch baking pan with parchment paper, ensuring it extends over the edges for easy removal.
02 - In a large bowl, cream together the softened butter and granulated sugar until the mixture is light and fluffy. Incorporate the all-purpose flour and salt, mixing until a soft dough forms.
03 - Press the dough evenly into the base of the prepared baking pan. Bake for 18 to 20 minutes, or until the edges appear lightly golden.
04 - While the crust is baking, whisk together the maple syrup, brown sugar, eggs, bourbon, melted butter, vanilla extract, and salt in a separate mixing bowl until thoroughly combined and smooth.
05 - Gently stir the pecan halves into the prepared topping mixture.
06 - Carefully pour the pecan mixture uniformly over the hot, par-baked crust. Return the pan to the oven and bake for an additional 25 to 28 minutes, until the filling is set and shows a slight puff.
07 - Allow the bars to cool completely in the pan on a wire rack before lifting them out using the parchment paper overhang. Cut into 16 equal squares.