Simmered Soybeans (五目豆, Gomoku-mame)

Gomoku-mame is the small dish that earns its keep. It sits in the corner of a tray, beside rice and soup, and does its work for several days: beans, carrot, konnyaku, hijiki, and shiitake, each one clear in the mouth. This is jōbi-sai, a side kept ready. Gomoku means 'five items,' but don't let the number bully you; in the kitchen it means a sensible mixture, not an arithmetic lesson.

The dish looks busy and asks for patience, not skill. The one detail that decides it is the soybean. Cook the beans until they are fully tender before the shōyu goes anywhere near them, because salt tightens the skins and can leave them stubborn no matter how long you mutter at the pot. Tender first, seasoning second. That's the whole door.

After that we do what washoku often does best: build a clear dashi, cut the vegetables small enough to belong with the beans, and let a quiet simmer settle everything into one bowl. A wooden drop-lid, otoshibuta, keeps the pieces under the broth without stirring; a parchment circle works well. Serve gomoku-mame at room temperature, and make it ahead. It tastes more like itself after a night in the refrigerator, one of the kinder tricks of batch cooking.