Ingredients:
- 2 large navel oranges, thinly sliced into rounds (about 450 g)
- 1 lemon, thinly sliced (about 115 g)
- 3 cinnamon sticks, about 7.5 cm each
- 8 whole cloves
- 4 green cardamom pods, lightly crushed
- 2 whole star anise pods
- 1 inch fresh ginger, sliced into coins (about 10 g)
- 8 cups (1.9 L) water
- 1/4 cup (55 g) packed brown sugar, optional
- 8 orange rounds, for garnish (1 per mug)
Instructions:
- Wash the oranges and lemon well. Trim off the ends and slice the fruit into rounds about 3 mm (1/8 inch) thick.
- Slice the ginger into thin coins. Crush the cardamom pods lightly with the flat side of a knife.
- Add the water, citrus rounds, cinnamon sticks, cloves, cardamom, star anise, and ginger to a 4-quart heavy-bottomed saucepot. Stir once.
- Set the burner to medium and heat for 10 to 12 minutes, until small bubbles just break the surface and the liquid reaches 77 to 82°C (170 to 180°F). Do not let it reach a rolling boil.
- Reduce the heat to low and keep the liquid at a lazy simmer for 1 hour to 1 hour 15 minutes, until the liquid is clear golden amber and smells strongly of cinnamon and citrus.
- Stir in the brown sugar, if using, until dissolved, about 1 minute. Taste and add more only if needed.
- Turn off the heat. Cover the pot and let it steep for 10 minutes.
- Set a fine-mesh strainer over a heatproof pitcher. Pour the liquid through and discard the solids.
- Ladle the drink into mugs, add one orange round to each, and serve warm.