温泉卵

おんせんたまご

egg slow-boiled so that the yolk is hard…

Meanings

also 温泉たまご · 温泉玉子

  1. noun egg slow-boiled so that the yolk is hard but the white is still soft (traditionally cooked in a hot spring)

Its kanji

In sentences

おみやげの温泉卵おんせんたまごだよ。 It's a souvenir onsen egg. #10899526