If applicable, grind dried mushrooms in a coffee grinder until it's a find powder.
Add all ingredients to a bowl, and mix thoroughly.
Store in an airtight container, such as an old spice bottle.
I used dried mushrooms and ground them into a powder. This can be better, as you control what parts of the mushroom is included (some powders are made of stems and broken pieces as opposed to the full mushroom). If a concern, check for grit in advance by soaking a couple. See the recipe article for more notes about the mushrooms. 1/2 cup of dried mushrooms makes about 1/4 cup of powder.I used a jalapeno pepper powder in this recipe, because it is finely ground. Use crushed red pepper flakes, or you could grind them in a coffee grinder too. This recipe makes about 60g of dry spice.