17min · 28 servings Ingredients • 1 ¼ cups (2 ½ sticks, 10 ounces) unsalted butter, softened • ¾ cup (3 ounces) confectioners' sugar • 1 teaspoon vanilla extract • ¼ teaspoon fine sea salt • 2 ½ cups (12.5 ounces) all-purpose flour