Meanwhile, in a dry, non-stick skillet over medium-high heat, toast the coriander and fennel seeds until browned. Set aside on a plate. In the same skillet, toast the cloves, cinnamon stick and star anise until lightly charred. Set aside on the plate with the other spices to cool. Place all of the spices in a reusable tea bag or in a piece of cheesecloth tied with butcher’s twine. Set aside.