Preheat oven to 350 degrees. Line a 9x13 baking pan with parchment paper.
With an electric mixer, beat ½ cup unsalted butter, brown sugar, flour, and salt until coarse crumbs form. Pour mixture into pan and press firmly to the bottom to form the crust.
Bake crust 25 minutes. While it is cooling prepare the topping.
In the same bowl, by hand, mix eggs, corn syrup, granulated sugar, and the 2 tablespoons of melted butter. Stir in chocolate chips and pecans and spread over crust.
Bake an additional 25 minutes. Let cool in pan 20-30 minutes before lifting out.
Recipe by Supper for a Steal at http://www.supperforasteal.com/chocolate-pecan-pie-bars/