A lot of spice and no sugar (we use agave syrup, lower on the glycemic index) lends a clean, mild flavor to this holiday classic.
1. Tie the cloves, peppercorns, zest, cinnamon and vanilla in a piece of cheesecloth (you can also use a coffee filter). Or you can just throw everything in the pot, but be careful later when you drink the wine.
2. Combine the “spice bag” with the other ingredients in a large pot.
3. Bring to a boil, then lower the heat as low as it can go and let it quietly bubble away for at least 20 minutes, up to a few hours.
4. Ladle it into glasses and serve.