Begin by thoroughly washing the oranges. Cut a few slices from the oranges to be used later when serving.
Squeeze the juice from the oranges, reserving the leftover pieces.
Combine red wine, orange pieces, sugar, and fresh ginger in a large pot. Heat under low heat.
Slice the vanilla pod lengthwise, scrape out the seeds, and add both the seeds and the pod, along with the cinnamon sticks, cardamom pods, star anise, and a nutmeg to the pot.
Simmer covered on low heat for 20 minutes to infuse flavors. Do not boil to avoid the alcohol evaporating.
Remove from heat, strain into glasses, garnish with cinnamon sticks or orange slices, then serve.