Strawberry Shortbread Cookies

Name: Strawberry Shortbread Cookies
Prep time: 10 min
Cook time: 13 min
Total time: 23 min
Cuisine: American
Ingredients: 1/2 cup freeze-dried strawberries (.5 ounces), plus more for garnish; 3/4 cup unsalted butter, softened (12 tablespoons); 3/4 cup granulated sugar (5.8 ounces); 1/4 teaspoon kosher salt; 1 1/2 teaspoons vanilla extract; 1 1/2 cups all-purpose flour, spooned and leveled (6.3 ounces); 1 egg white, to garnish, optional; Sparkling sugar, to garnish, optional