Special equipment: small slow cooker, optional
Combine the tea bags, peppercorns, cinnamon sticks, ginger and 4 cups water in a large saucepan. Bring to a simmer over medium heat. Add the almond milk and sugar. Reduce the heat to low and allow to simmer gently for about 10 minutes.
Strain the mixture into a small slow cooker to keep warm during a party or ladle directly into 8 mugs, taking care to leave the spices in the saucepan. Serve with rye on the side for guests to add 1 ounce themselves, and garnish with orange twists, if desired.