Begin by filling a spice bag with your mulling spices.
In a heavy-bottom saucepan or a slow cooker, add the bagged mulling spices, wine, cider, and honey. Mix to combine. Cover and cook on low for 2-3 hours. Remove the bagged mulling spices and discard them.
Before serving, stir in the orange and apple slices. Serve immediately or keep covered and set on low (warheat.
If desired, add a splash of spiced rum, brandy, or bourbon just before serving. (I usually don't do this because I think the depth of flavor is delightful as is.)
Notes
*You can get my recipe for Homemade Mulling Spices here. You could also substitute your favorite mulling spice blend. Alternatively. you can use a couple of cinnamon sticks, five whole cloves, and five whole allspice.**Feel free to add another cup of cider if you want more apple flavor.