Separate eggs. Whip the cream until stiff and let vanilla sugar trickle in. Beat the egg whites until stiff. Break the chocolate into pieces. Melt in a hot water bath. Let it cool down a little bit
In the meantime, whisk the egg yolk and sugar with the whisk of the hand mixer for about 8 minutes until light creamy
Pour the liquid chocolate into the egg yolk mixture while stirring. Stir in the liqueur. Then fold in cream and beaten egg white one after the other in portions with a whisk. Arrange the mousse and chill for about 4 hours. If necessary, decorate with chocolate rolls, mint and orange