Key Lime Pie

1 store-bought graham cracker crust
2 cans sweetened condensed milk
1 c key lime juice (I think it works with regular lime juice too, but I haven't tried it)
2 lg eggs
1 c sour cream
2 T powdered sugar

Preheat oven to 325
Whisk together sweetened condensed milk, key lime juice, eggs until well mixed
Pour into graham cracker crust
Bake in oven for 15 minutes. It will not be set when you remove it
Cool completely (pie will set as it cools)
Refrigerate for at least 4 hours

When ready to eat, mix sour cream and powdered sugar, spread over top of pie
Keep leftovers refrigerated