preheat oven to 325°F (160°C).
mix graham crumbs, sugar, and melted butter. press evenly into two ramekins or mini springform pans.
in a bowl, beat cream cheese and sugar until smooth. add egg, vanilla, and sour cream, mix again until creamy.
pour filling over crusts and give a little shake to settle it.
bake 25 to 30 minutes until edges look set and the center still wobbles lightly.
let cool completely, then chill in the fridge for at least 2 hours.
top with caramel sauce right before serving. be generous.