1 (9 inch) prepared graham cracker crust
2 cans sweetened condensed milk
1/2 cup sour cream
3/4 cup key lime juice
1 Tbs grated lime zest, optional
Preheat oven to 350 degrees. In a medium bowl, combine condensed milk, sour cream, lime juice and lime zest. Mix well and pour into graham cracker crust.
Stick into preheated oven and bake for 5-8 minutes, until tiny bubbles form on the surface of the pie. Make sure not to brown! Chill pie in the fridge for 2 hours before serving.
Recipe Source: All Recipes