Blood Orange–Vanilla Cookies

Name: Blood Orange–Vanilla Cookies
Ingredients: 2 sticks unsalted butter, at room temperature; 2 1/2 cups all-purpose flour; 1 cup confectioners’ sugar; 1/2 teaspoon salt; 1 tablespoon blood orange zest (or Cara Cara or navel orange zest); 1 tablespoon vanilla bean paste; 2 teaspoons orange extract; 1 pound confectioners’ sugar; 2 tablespoons meringue powder; 4 to 6 tablespoons blood orange juice (or Cara Cara or navel orange juice); 2 teaspoons pure vanilla extract; Orange and red gel food coloring