Start with making the dough. In a medium bowl cream the butter, sugar, salt and vanilla extract. Add the flour and mix until all combined.
Preheat the oven to 350 degrees.
Spray a baking sheet (11 ¾ x 9 1/4) with cooking spray. (See note) Press the dough mixture at the bottom of the pan evenly. Bake for 15-20 minutes.
While crust is baking make the filling. In a small bowl add the corn syrup, sugar, eggs, vanilla extract and melted butter. Stir until combined. Set aside.
Chop the pecans and add them to the bowl with the filling. Set aside.
When the crust is done baking pour the filling mixture on top. Bake for 30-35 minutes or until the center has set. Rotate the pan half way through to make sure it evenly browns. (See note)
Once bars are done let them cool for about 15-20 minutes before cutting. Enjoy!!