1. Cut the tofu into pieces and set aside. Both brine tofu and seawater tofu are fine, and seawater tofu is best.
2. Wash the pen tube fish and cut into sections for later use. Remember to take out the plastic-like thing from the belly (left).
3. Cut the green onions, ginger, and coriander.
4. Pour a small amount of oil into the pot, add green onion and ginger until fragrant.
5. Add the tofu and fry for a while, turn the pan to make sure it doesn't stick to the pan and don't break the tofu.
6. Add appropriate water and salt, and simmer the tofu for 15-20 minutes.
7. After the tofu is simmered, put the pen tube fish evenly on the top, don't turn it, just put it on the top.
8. After the pen tube fish has changed color and turned white, it is fine, like this, don't get too big, it will affect the taste.
9. Add monosodium glutamate and coriander, and remove.
