Combine the vinegar, mirin, soy sauce, lime juice, lemon juice, wine or sake and dried mushrooms in a small saucepan.
Bring to a simmer over low heat. Continue to simmer for 15 minutes, making sure the mushrooms are submerged so they can steep.
Turn off heat and allow the sauce to sit for an additional 15 minutes.
Pour the sauce through a fine mesh sieve, discarding solids. You can just pluck out the mushrooms, but sometimes little bits fall off and you'll likely not want to bite into a little flavor bomb of steeped dried mushroom.
Use in a recipe or as a dipping sauce.
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