1: In a bowl, whip the heavy cream until soft peaks form.
2: In another bowl, mix mascarpone cheese, sugar, and nutella until smooth.
3: Gently fold the whipped cream into the mascarpone mixture until combined.
4: Crush the Ferrero Rochers and fold them into the mousse carefully.
5: Spoon the mousse into serving dishes and refrigerate for a few hours before serving.
