FOR THE SCONES: – 2 cups (240g) all-purpose flour – 1/4 cup (50g) granulated sugar – 2 teaspoons orange zest – 2 teaspoons baking powder – 1/2 teaspoon baking soda – 1/2 teaspoon salt – 1/2 cup (113g) unsalted butter, cold & cut into 1/4-inch cube – 1 cup cranberries (fresh or frozen) – 3/4 cup (177ml) buttermilk (or sour cream or Greek yogurt) – 1 egg yolk – 1 & 1/2 tablespoons orange juice – 1 egg white, optional – sanding sugar or sparkling sugar (optional) FOR THE GLAZE: – 1/2 cup (55g) confectioners’ sugar, sifted – 1 tablespoon orange juice – 1/2 to 1 tablespoon milk