Homemade Key Lime Pie

Piece of key lime pie with a forkful taken out on a dark green plate.

5 from 1 vote

This easy Homemade Key Lime Pie recipe is made with a buttery graham cracker crust and a flavorful creamy key lime filling. You won't believe how simple Key Lime Pie is to make!

Prep Time30

Cook Time25

Chilling Time4

Total Time4 55

Servings: slices

Calories: 335kcal

Author: Naomi Andres

Ingredients

For the Crust:

1 ½ cups graham cracker crumbs
2 tablespoons granulated white sugar
⅓ cup salted butter, melted

For the Filling:

2 ½ cups sweetened condensed milk (approximately 600 millilitres or 20 ounces)
2 egg yolks
1 teaspoon vanilla extract
¾ cup fresh key lime juice *
½ cup sour cream

Topping/Garnish:

whipped cream
lime zest *

Instructions

To make the Crust:

Preheat the oven to 350℉. Stir together the graham cracker crumbs, sugar, and melted butter until combined. Pour the crust mixture into a 9-inch pie pan and press firmly onto the bottom and sides of the pan to form a crust. Bake in the preheated oven for 10-15 minutes. Leave the oven on while you prepare the filling.

To make the Filling:

Whisk together the sweetened condensed milk, egg yolks, and vanilla extract in a large bowl. Add the key lime juice and continue whisking until combined. Lastly, whisk in the sour cream until smooth.
Pour the filling into the still-warm graham cracker crust and smooth out the top with a spatula. Bake in the preheated oven for 13-14 minutes. Let cool on a wire rack to room temperature before covering and refrigerating for at least 4-6 hours. Serve with whipped cream on top. Enjoy!

Notes

You can also make this recipe with regular lime juice. It won't be quite as flavourful as key lime juice but it will work in a pinch.
This recipe does not call for lime zest in the filling. When lime zest is cooked into the mostly liquid pie filling a very bitter and unpleasant taste is released into the filling. I suggest topping the pie with fresh lime zest right before serving (after the pie has baked and chilled) for more lime flavor and as a pretty garnish.

Store key lime pie covered tightly in the refrigerator for up to 3 days.

Nutrition