Prepare Pastry for Single-Crust Pie. On a lightly floured surface, roll dough to form a 12-inch circle. Ease pastry into a 9-inch pie plate. Trim to 1/2 inch beyond edge of pie plate; fold under extra pastry. Crimp edge. Set aside.
For filling, in a medium bowl, combine eggs, brown sugar, corn syrup, melted butter, bourbon (if you like), and vanilla. Stir in chocolate pieces, nuts, and salt until well combined. Pour into pastry-lined pie plate. To prevent overbrowning, cover edge of pie with foil.
Bake in a 375 degree F oven for 20 minutes. Remove foil. Bake for 20 to 30 minutes more or until the crust is golden and a knife inserted near the center of the filling comes out clean. Let cool for at least 2 hours before cutting. Makes 8 servings.
In a mixing bowl, stir together all-purpose flour and salt. Using a pastry blender, cut in shortening until pieces are pea size. Sprinkle 1 tablespoon of cold water over part of the mixture; gently toss with a fork. Push moistened dough to the side of the bowl. Repeat moistening dough, using 1 tablespoon cold water at a time, until all the dough is moistened (4 to 5 tablespoons cold water total). Form dough into a ball.