1
cup all-purpose flour
1
/2 cup powdered sugar plus more for pressing cookies
1
/2 cup (1stick) chilled unsalted butter, cut into 1/2′ cubes
2
tablespoons sliced fresh basil leaves
1
teaspoon finely grated lemon zest plus 1 tablespoon fresh lemon juice
1
/2 teaspoon finely grated lime zest
1
/4 teaspoon kosher salt
Sanding sugar (optional)