Preheat the oven to 350 degrees. Line two muffin pans with cupcake liners.
Place 10 cookies in a zip top bag. Use a rolling pin to crush the cookies, the set the bag aside.
Separate each of the other cookies into two halves. Dip each half in the melted butter and place one cookie in the bottom of each cupcake liner.
In a large bowl, beat together the cream cheese, sugar, sour cream, and vanilla until smooth and creamy.
Add the eggs, one at a time, beating between each addition.
Fold in half the crushed cookies
Spoon the cheesecake mixture into the cupcake liners over the top of the cookies, filling each liner around 2/3 of the way full. Sprinkle the remaining crushed cookies over the top of each mini cheesecake.
Bake in the preheated oven for 30 to 35 minutes, until the center of the cheesecakes is set and no longer jiggles.
Allow the cheesecakes to cool in the pan until they reach room temperature, then transfer them to the refrigerator to chill for at least one hour.
When ready to serve, top with whipped cream and additional cookie crumbs, if desired.