These two are all you need to whip up tamago kake gohan — a very popular Japanese breakfast food. The long-time traditional staple of many Japanese households has a unique origin story.

Editor’s note: The theme of Gohan Lab is to help people make simple, tasty “gohan” (meals). The very first article of Gohan Lab focused on ways to cook boiled eggs as you desired.

Editor’s note: The theme of Gohan Lab is to help people make simple ... sterilizing and other effects on food ingredients, some spices have been considered to work on the body in digestion ...