Add eggs to a large bowl and whisk.
Add sugar, Karo syrup, vanilla extract, and butter to bowl with eggs. Whisk until ingredients are well incorporated.
Scatter pecans in the bottom of the unbaked pie shell.
Pour filling over pecans.
Sprinkle top with kosher salt.
Bake in a 325 degree preheated oven for one hour or until center is set and barely jiggles when shaken. You don't want it sloshy.
Cool completely before cutting.