Prepare the Crust: In a food processor, crush all 24 Oreo cookies into fine crumbs. Combine the crumbs with melted butter in a bowl and mix until well combined.
Form the Base: Press the Oreo mixture firmly into the bottom of a 9-inch springform pan to create an even layer. Use the back of a measuring cup for a smooth finish. Chill in the refrigerator while you prepare the filling.
Make the Filling: In a large bowl, beat the softened cream cheese with an electric mixer until creamy and smooth.
Add Sweetness: Gradually add powdered sugar and vanilla extract to the cream cheese mixture, continuing to beat until fully incorporated.
Whip the Cream: In another bowl, whip the heavy cream until stiff peaks form. This may take about 3-5 minutes with an electric mixer.
Combine: Gently fold the whipped cream into the cream cheese mixture until no white streaks remain. Be careful not to deflate the mixture.
Add Oreos: Fold in the 1/4 cup of Oreo crumbs, ensuring they are evenly distributed throughout the filling.
Fill the Crust: Pour the cheesecake filling into the chilled Oreo crust, smoothing the top with a spatula.
Chill: Cover with plastic wrap and refrigerate for at least 4 hours or until set (overnight is best for optimal consistency).
Serve: Once set, carefully remove the sides of the springform pan. Garnish the top with additional crushed Oreos or whole cookies before slicing.