Prepare the Crust: In a bowl, combine the crushed Oreo cookies and melted butter. Mix until the crumbs are evenly coated.
Press the Crust: In a 9-inch springform pan, press the Oreo mixture firmly into the bottom to form an even crust. Refrigerate for at least 10 minutes to set while preparing the filling.
Make the Filling: In a large mixing bowl, beat the softened cream cheese with an electric mixer until smooth and creamy, about 2-3 minutes.
Add Sugar and Vanilla: Gradually add the powdered sugar and vanilla extract to the cream cheese, continuing to mix until fully combined.
Whip the Cream: In another bowl, whip the heavy cream until soft peaks form. Gently fold the whipped cream into the cream cheese mixture using a spatula until just combined.
Incorporate Chopped Oreos: Fold in the chopped Oreo cookies into the cheesecake mixture, ensuring they're evenly distributed.
Assemble the Cheesecake: Pour the filling over the chilled crust, smoothing it out evenly with a spatula.
Chill to Set: Cover the pan with plastic wrap and refrigerate for at least 4 hours, or overnight for best results.
Garnish and Serve: Before serving, gently run a knife around the edges of the cake and release from the springform pan. Top with extra whole Oreo cookies for garnish.