Prep: Quarter and remove the core from each apple. Quarter the oranges, removing the peel for a sweeter cider. Add all fruit, cinnamon, and spices to a large pot. Cover with water.
Cook: Bring to a simmer and cover (you may need to leave the lid ajar if it keeps boiling over). Simmer for 2 hours, or until apples are very soft.
Mash: Mash the fruit to release flavors, then continue simmering for 15 minutes.
Strain: Carefully pour the through a fine mesh sieve into a large pitcher or pot. Stir in brown sugar, adding more as needed to suit your taste.
Serve: Serve hot, optionally garnished with fruit, cranberries, and cinnamon sticks.
Notes
To make this apple cider in a slow cooker, cook mixture on low for 6-8 hours, or on high for 3-4. Mash, then continue simmering for 15 minutes before straining.