Mix Oreo cookie crumbs with melted butter until evenly coated. Press firmly into the bottom of a 7β8 inch springform pan and refrigerate for 20 minutes to set.
Whip the heavy cream until soft peaks form. Set aside.
Beat the softened cream cheese, powdered sugar, and vanilla extract until smooth and creamy.
Gently fold the whipped cream into the cream cheese mixture, then fold in the crushed Oreos until evenly distributed.
Spread the filling over the chilled crust and smooth the top. Refrigerate for 4β6 hours, or overnight, until fully set.
Garnish with crushed and whole Oreo cookies before slicing and serving chilled.