Combine the sugar, cocoa powder, and salt in the bowl of an electric mixer fitted with a whisk attachment. Beat for a few seconds to combine. Add the melted butter and beat on high until combined. Add the vanilla, bourbon, eggs, and cornmeal. Beat on high speed for 2 minutes.
Pour the mixture into the pie crust, sprinkle the chopped pecans over the top and bake for 1 hour. Let cool.