Steps
1. Preheat the oven to 350°F (175°C).
2. In a small bowl, mix the graham cracker crumbs, sugar, and melted butter until well combined.
3. Press the mixture into the bottom and up the sides of a small ramekin to form a crust.
4. Bake the crust for 8-10 minutes, or until lightly golden. Remove from oven and let cool.
5. In a separate bowl, whisk together the key lime juice, sweetened condensed milk, and lime zest until smooth.
6. Pour the lime filling into the cooled crust and bake for an additional 10 minutes.
7. Let the pie cool to room temperature, then refrigerate for at least 2 hours.
8. Top with whipped cream before serving.