Ingredients

• 1 (9 inch) prepared graham cracker crust
• 2 egg yolk, beaten (optional)
• 1/4 cup key lime juice
• 1 (14 ounce) can sweetened condensed milk

Instructions

1. Whisk the egg yolks into the milk. Stir in lime juice until well combined. Pour filling into graham cracker crust.
2. Refrigerate for 2 hours if made without egg yolks, 4 hours or overnight with egg yolks.