Combine the wine, orange slices, sugar, cloves, cinnamon sticks, and star anise in a large pot.

Gently warm the mixture over low heat for about 20 minutes. Make sure it doesn't boil; we just want it nice and warm.

Taste it and add more sugar if you like it sweeter.

Use a strainer to remove the spices and orange slices.

Serve warm in your chosen mugs or glasses.

If you like, add a splash of brandy to each cup for extra warmth.