Orange Meringue Pie - The Local Palate

Ingredients

• 1 cup granulated sugar
• ¼ cup cornstarch
• ⅛ teaspoon salt
• 1½ cups freshly squeezed orange juice
• 3 large egg yolks
• 1½ tablespoons freshly squeezed lemon juice
• 2½ teaspoons orange zest
• 2 tablespoons unsalted butter, at room temperature
• 1 batch pie dough, pre-baked
• 3 large egg whites
• ¼ teaspoon cream of tartar
• 3 tablespoons granulated sugar
• 3 tablespoons powdered sugar