Mix crushed Oreos with melted butter in a bowl until the crumbs are well-coated.
Press the mixture into the bottom of a springform pan and chill in the fridge for at least 20 minutes.
In a large bowl, beat the cream cheese until smooth. Add powdered sugar and vanilla extract. Mix well.
In a separate bowl, whip the heavy cream until stiff peaks form.
Fold the whipped cream into the cream cheese mixture gently.
Stir in the chopped Oreos, distributing them evenly.
Pour the mixture over the chilled crust and smooth out the top.
Refrigerate the cheesecake for at least 6 hours or overnight for best results.
Garnish with extra crushed or whole Oreos before serving, if desired.