Learn how to make homemade mushroom seasoning using foraged or store-bought mushrooms. A simple, flavorful way to preserve mushrooms and add umami to everyday meals.
Fully dry mushrooms, then break them into pieces if needed.
Grind the mushrooms using a coffee grinder (preferable), food processor, or blender until they are finely ground.
If the mixture is chunky, sift larger pieces with a fine mesh sieve until you have a fine mushroom powder.
Mix in thyme, garlic powder, salt, pepper, and MSG (optional) until evenly blended.
Storage
Pour mushroom seasoning into an airtight container or a spice jar and store in a cool, dry location for up to 12 months. Toss in an oxygen absorber or a moisture-absorbing silica packet.
Notes
For a fine, restaurant-quality seasoning, sift the powder and regrind any larger bits.
Avoid storing the seasoning in a plastic container. Glass jars with tight-fitting lids preserve flavor longer and don't absorb odors. If using a mason jar, a mason jar vacuum can be used to vacuum-seal the jar.
If flavor fades over time, add a pinch of freshly ground dried mushrooms to revive it.