Start by brewing your espresso. Let it cool completely.
In a large mixing bowl, pour in the cold heavy cream. Whip the cream on medium speed until soft peaks form.
In a separate bowl, combine the melted dark chocolate, cold milk, cold espresso, confectioners sugar, and protein powder. Mix until smooth.
Gently fold the chocolate mixture into the whipped cream using a spatula.
Spoon the mousse into serving dishes and refrigerate for at least 1 hour to set.
Once chilled, serve your Protein Coffee Mousse as is or with your favorite toppings.
