Gently wipe the dried filefish with a damp cloth to remove any surface dust and slightly soften it. Do not soak.
2
In a small bowl, combine the gochujang, soy sauce, mirin, sugar, minced garlic, sesame oil, and gochugaru. Mix thoroughly until a smooth marinade forms.
3
Evenly spread the marinade over both sides of each piece of dried filefish. Ensure each piece is well coated.
