
This no-bake chocolate mousse pie features a dreamy Oreo cookie crust filled with silky-smooth chocolate mousse and crowned with pillowy whipped cream.
In a large saucepan, combine the marshmallows, chocolate chips, milk, and butter over medium heat. Stir constantly until the chocolate and marshmallows melt.
Remove the pot from the heat, stir in the vanilla, and set aside to cool to room temperature (about 1 hour).
In a large, cold bowl, whip 2 cups heavy cream to stiff peaks. Add a small amount to the chocolate-marshmallow mix and stir well. Then, fold in the remaining whipped cream until no streaks remain.
Pour the chocolate mousse into the Oreo crust, spreading it evenly. Refrigerate for 2-3 hours.
Whip the remaining 1 cup of heavy cream with the powdered sugar to stiff peaks. Spoon over the chilled mousse and spread evenly.
Top with chocolate shavings or curls for a decorative finish. Slice, serve, and enjoy!