Preheat oven to 350 degrees.
Boil sugar and syrup together for about 2-3 minutes. Set aside to cool.
Beat eggs lightly and very slowly. Pour syrup mixture into eggs stirring constantly.
Strain the egg and syrup mixture to be smooth and lump free.
Stir in butter, vanilla, salt and pecans.
Pour into pie crust.
Bake at 350 degrees for about 45-60 minutes until set.