Creating delicious Oreo Cheesecake Cookie Cups is simple if you follow these steps:

1. Preheat: Preheat your oven to 350°F (175°C). Grease a mini muffin tin and set aside.
2. Make the Crust: In a medium bowl, combine the crushed Oreo cookies and melted butter until well mixed.
3. Form the Cups: Press about 1 tablespoon of the Oreo mixture into each muffin tin compartment to form a crust.
4. Bake Crusts: Bake the crusts for 8-10 minutes, or until they’re set. Remove from the oven and allow to cool slightly.
5. Prepare the Filling: In a large mixing bowl, beat together the softened cream cheese and granulated sugar until smooth.
6. Add Vanilla: Mix in the vanilla extract, followed by the eggs, one at a time, ensuring each is well incorporated.
7. Incorporate Sour Cream: Fold in the sour cream until the mixture is creamy and smooth. Finally, gently stir in the crushed Oreo cookies for added texture.
8. Fill Crusts: Spoon the cheesecake filling into each cooled crust, filling them about ¾ full.
9. Bake Cups: Return the muffin tin to the oven and bake for another 15-18 minutes, or until the centers are just set but still slightly jiggly.
10. Cool Down: Once baked, remove from the oven and let cool at room temperature. Then, transfer to the refrigerator for at least 30 minutes to chill completely.
11. Serve and Enjoy: Carefully remove the cookie cups from the muffin tin and serve with a dollop of whipped cream and additional Oreo pieces if desired.

These straightforward steps will lead you to an incredible outcome: amazing Oreo Cheesecake Cookie Cups that everyone will adore.