Old Fashioned Lemon Meringue Pie Recipe

Ingredients

• 1 piece Pre-baked pie crust (9-inch)
• 1 cup Granulated sugar (for filling)
• 0.25 cup Cornstarch
• 3 tablespoons All-purpose flour
• 0.25 teaspoon Salt
• 1.5 cups Water
• 0.5 cup Lemon juice (freshly squeezed)
• 1 tablespoon Lemon zest
• 4 large Egg yolks
• 2 tablespoons Unsalted butter
• 0.5 cup Granulated sugar (for meringue)
• 4 large Egg whites
• 0.25 teaspoon Cream of tartar