In a medium bowl, stir together the Oreo cookie crumbs and melted butter. divide the crumbs between your individual jars or serving dishes and press into the bottoms of the dishes to form a half-inch crust layer.
In a large bowl, with an electric mixer, combine the cream cheese and Nutella until smooth and creamy.
Pipe evenly or spoon the filling into individual serving dishes or food jars. Refrigerate for at least 2 hours to allow to set.
Whip the cream to stiff peak and fold the sugar slowly until they are wll-combined.
If desired, garnish with additional chocolate shavings, toasted chopped hazelnuts, or ferrero rocher chocolates.