• Pie Crust: Homemade all-butter crust or two ready-to-roll pie crusts
• Egg Yolks: 4 (for filling + 1 egg (for egg wash))
• Sugar: 1⅓ c. (for filling, ¾ c. (for meringue))
• Salt: ¼ tsp (for filling, a pinch (for meringue))
• Lemon Juice: ½ c. (freshly squeezed)
• Lemon Zest: 1 tbsp (finely grated)
• Egg Whites: 4 (room temperature)