In a small bowl combine coriander anise, cinnamon, peppercorns, all spice, cardamom, cloves, and orange peel.
In a spice mill or coffee grinder, coarsely grind the spices. Mix in the ginger and nutmeg.
Pour the water into a one gallon pot and add the spice mixture. Bring to a boil, cover, and simmer for 15 minutes.
Add tea and vanilla and steep 3 to 5 minutes.
Strain the liquid into a large pitcher. You may want to add honey, milk, or cream, or wait and offer these to your guests on the side.
Tea can be served hot or chilled.
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