
Since many of you asked about the sho-yu tamago (soy sauce eggs) that my mother used to pack for me in my school outings bentos [1], here’s the recipe for them. Well, I hesitate to even call it a recipe - it’s so easy.
All you do is:
Since the soy sauce is salty enough, there’s no need for extra salt or other seasonings, which makes them very portable - therefore great for picnic or school outing bentos.
These are even easier than the lazy tea eggs [3], but they don’t really keep, so you do have to make them when you need them.
They are very pretty when cut in half or in slices, and make a nice gap filler in a regular bento box.

Flavor wise, miso marinated eggs [4] or the lazy tea eggs [3], but both methods take some time. When you are in a hurry these soy sauce rolled eggs do fine.
Links:
[1] http://justbento.com/first-anniversary-giveaway-day-3-school-outing-bento-memories
[2] http://www.justhungry.com/5th-anniversary-giveway-day-3-meandering-path-just-hungry
[3] http://justbento.com/handbook/johbisai/lazy-easy-tea-eggs
[4] http://justbento.com/handbook/johbisai/miso-tamago-miso-marinated-eggs