Pour the wine in a pot and add the maple syrup, orange slices, and all of the spices except the garnishes. Heat on medium.
Once the wine is just barely simmering, turn to low and keep at a low simmer for at least 20 minutes. Keep warm over low heat until ready to serve. Do not boil.
When you're ready to serve, strain or scoop the oranges and spices from the mulled wine.
Use a ladle to pour the mulled wine into individual mugs and garnish with an orange and freshly grated nutmeg if using. You can also add a cinnamon stick, star anise, fresh herbs, fresh cranberries, and/or fruit slices to the mug for garnish.
Notes
This recipe can easily be doubled or tripled for a crowd!
Feel free to put the mulling spices in a muslin bag or cheesecloth so you don't have to strain them out.
Feel free to add 1/4 cup of brandy or bourbon to this recipe if you would like.
The mulled wine can be kept in a slow cooker on low to keep it warm.