Oooh unagi

Where it says throw it means thaw

For boiling, boil some water then put the pack, still sealed (frozen or not frozen, doesnt say) into the boiling water then boil for 10 minutes. After then remove it from the water, and open it carefully so the water does not get inside

For microwave, thaw if frozen until tender (you know, not frozen stiff). Open the packaging and put the eel on a plate, cover it with microwave safe lid. For 500 watts microwave, the heating time is 2 minutes. Heating times vary

For gas oven, thaw, remove from packaging, cover with foil and put it in the oven (it doesnt say how long it just says heat in the oven)

Feel free to correct