Preheat oven to 350 degrees.
Whisk sugar and corn syrup together in large mixing bowl.
Add eggs, lemon juice, vanilla, salt, and pecans.
Brown butter in a pan on the stove until a dark caramel color, be careful not to burn. Cool slightly and add to mixture. Stir well to incorporate all ingredients and pour in to prepared pie shell.
Bake for 45 minutes or until set. Let cool completely before serving.