Preheat the Oven: Preheat your oven to 350°F (175°C).
Prepare the Crust: In a bowl, mix together graham cracker crumbs, sugar, and melted butter. Combine until everything is moist and well-combined.
Form the Crust: Press the mixture evenly into the bottom of a pie dish to create the crust.
Bake the Crust: Place the crust in the preheated oven for about 10 minutes until golden brown. Once baked, remove and let it cool.
Mix the Filling: In a separate bowl, whisk together the lime juice, sweetened condensed milk, egg yolks, and lime zest until smooth and well combined.
Pour the Filling: Pour the filling into the cooled crust, spreading it evenly.
Bake the Pie: Return the pie to the oven and bake for 15-20 minutes until the filling is set.
Cool and Chill: Let it cool at room temperature, and then refrigerate for at least 4 hours (or overnight, if you can resist!).
Serve: Top with whipped cream before serving for an extra touch of delight.