Step 1.
- Combine the red wine, water, and sugar in a large pot over medium heat.
Step 2.
- Add the cinnamon sticks, star anise, cloves, and orange slices.
Step 3.
- Stir gently and heat the mixture until it is warm but not boiling, about 10-15 minutes.
Step 4.
- Remove from heat and let it steep for at least 10 minutes to absorb the flavors.
Step 5.
- Strain the Glühwein into mugs, discarding the spices and orange.
Step 6.
- Serve warm, garnished with a cinnamon stick and an orange slice.