noun
century egg; preserved egg
A Chinese delicacy made by preserving duck, chicken, or quail eggs in a mixture of clay, ash, salt, quicklime, and rice hulls for several weeks to months.
from Chinese pídàn
中華街で皮蛋を買ってきた。
I bought some century eggs in Chinatown.
ピータンはお粥に入れると美味しい。
Century eggs are delicious when added to rice porridge.
Borrowed from Chinese 皮蛋 (pídàn), literally 'skin egg' or 'leather egg', referring to the preserved egg's appearance.