Preheat your oven to 325°F (160°C).
In a bowl, combine graham cracker crumbs and melted butter.
Press the mixture firmly into the bottom of a lined muffin tin.
In another bowl, beat the cream cheese until smooth.
Gradually add sugar and mix until well combined.
Stir in vanilla extract and sour cream.
Add eggs one at a time, mixing on low speed until just combined.
Pour the mixture over the crusts in the muffin tin.
Bake for 20-25 minutes until set but slightly jiggly in the center.
Allow to cool completely, then refrigerate for at least 2 hours before serving.