2. Cut the onion and cut the ginger and garlic for later use.
3. Put oil in a hot pan, pour in the processed mullet, add cooking wine and stir fry constantly.
4. Stir fry mullet until golden brown, and add prepared onion, ginger and garlic.
5. Pour boiling water directly, then add appropriate amount of salt, cover the pot and stew for 20 minutes, and finally stew for 5 minutes.