1. Add cloves and the cinnamon stick to a heat-safe jar.
2. Pour boiled water over the spices.
3. Stir in the baking soda.
4. Lightly cover (do not seal) and let it steep for 2–4 hours, until the liquid cools and turns a darker color.
5. Strain out the cloves and cinnamon.
6. Pour into a clean jar or bottle.
