Delicious Salted Rosemary Orange Shortbread Cookies Recipe

Name: Delicious Salted Rosemary Orange Shortbread Cookies Recipe
Cuisine: American
Ingredients: ⅔ cup plus ½ teaspoon granulated sugar; Zest of 2 oranges (about 1 tablespoon); 1 sprig fresh rosemary, needles removed (about 1 tablespoon) roughly chopped; 2 sticks unsalted Kerrygold butter; ¼ teaspoon kosher salt; 2¼ cups all-purpose flour, plus more for dusting; ½ teaspoon flaky salt