4. Toast Spices
Heat a small skillet over medium-high heat. Once the skillet is hot, add the cloves, star anise, cardamom, fennel, coriander, and cinnamon and toast until fragrant, 1 to 2 minutes.
Transfer to a piece of cheesecloth, along with the charred ginger. Bring the ends together and tie a knot to create a sachet.