all-purpose flour • sugar • coarse kosher salt (or 1/4 teaspoon fine salt) • unsalted butter, cold, cut into slices • brown sugar, light or dark • dark (robust) maple syrup • extra large eggs, beaten • unsalted butter, melted • vanilla extract • maple extract • coarse kosher salt (or 1/4 teaspoon fine salt) • coarsely chopped pecans