How to Make It
In a medium saucepan, combine the wine, star anise, cinnamon and allspice. Simmer over moderate heat for 5 minutes. Cover and remove from the heat. Let the wine steep, covered, for 20 minutes.
Whisk the sugar into the passion fruit juice until dissolved.
Just before serving, reheat the wine, but do not boil. Stir in the passion fruit juice. Place an orange slice in each of 10 brandy snifters and ladle in the wine, leaving the spices behind; serve.