Step 1

Crush or grind coriander seeds, mustard seeds, and peppercorns to release their flavor: use mortar and pestle or a spice mill to grind them coarsely. Or add the whole spices to a Ziplock bag and seal it, then crush them with a rubber mallet. Remove star of anise seeds if they are whole. Mix crushed seasonings together with bay leaves, pepper flakes, and star of anise seeds.

Step 2

Use seasonings right away with corned beef or use a funnel to add the seasonings to an air tight spice jar for storing and use within 6 months.