This Quick Pickled Oyster Mushrooms Recipe makes it easy for oyster mushroom hunters to create a small batch of pickled mushrooms to share with family and friends.
In a medium-size saucepan over medium-high heat, combine the water, vinegar, salt, peppercorns, mustard seeds, sugar, and garlic cloves and bring to a boil. Boil for 2 minutes.
Add the mushrooms, reduce the heat to low, and cook, stirring constantly, for exactly 2 minutes. Remove from the heat and let cool completely.
Place the sprigs of fresh thyme in the clean pint jar. Ladle the mushrooms and liquid into the jar, leaving ½-inch of headspace. Use a tablespoon to remove any excess liquid if necessary. Add the olive oil. Cover the jar and shake to combine.
Refrigerate and wait at least 8 hours before eating. These mushrooms will keep in the fridge for up to one month.