Probably my fav Japanese food. I spent two weeks in Hammamatsu Japan which is considered the center of Unagi production and consumption a few years ago. I had eel at least three times a day and LOVED it.
Unagi Don is a bowl of rice covered w/ the eel…good way to start. The package you have probably came from from Taiwan…not a bad thing but not top quality. The Japanese don’t export very much of the good stuff.