Crush 16 Oreos using a blender or food processor. Mix with melted butter and press into cupcake liners. Bake at 350°F for 5 minutes. Set aside.
In a bowl, whisk cream cheese until fluffy. Add sugar and whisk.
Add sour cream, egg, and vanilla extract until smooth. Fold in crushed Oreos.
Add the cheesecake mixture over the crusts. Bake at 325°F for 15-20 minutes, or until the center is set.
Let cheesecakes cool for 30 minutes, then refrigerate for at least 2 hours.
Top with whipped cream and extra Oreos. Enjoy!