In a food processor, combine flour, cold butter, sugar, and salt. Pulse until mixture resembles coarse crumbs.

Add 2-4 tablespoons of ice water, one tablespoon at a time, pulsing until the dough just comes together.

Press dough into the bottom of a 9x13 inch baking pan. Bake at 350°F (175°C) for 15 minutes.

In a large bowl, whisk together corn syrup, sugar, eggs, vanilla extract, and salt.

Stir in melted butter and pecans.

Pour filling over the baked crust.

Bake at 350°F (175°C) for 30-35 minutes, or until filling is set.

Let cool completely before cutting into bars.