Put the liquid ingredients together in a large saucepan and heat slowly. Important: Do not let the liquid boil, just warm it up!
Wash the oranges and cut them into slices. Add the oranges, the cinnamon sticks and the star anise to the pot and let it steep for about 30 minutes over low heat.
To serve, pour the mulled gin into a mug with a ladle and decorate with an orange slice, a cinnamon stick and a star anise.
If the result is a tick too sour, just add a little sugar if you like.
The specified amount is sufficient for 5 people with 2 cups each.