noun
manjū; steamed bun with filling
A traditional Japanese confection consisting of a steamed wheat-flour bun with a sweet filling, typically red bean paste.
お土産に饅頭を買った。
I bought some manjū as a souvenir.
この饅頭はあんこがたっぷり入っている。
This manjū has plenty of sweet bean paste inside.
From Chinese 饅頭 (mántou), originally a steamed bread. The Japanese manjū evolved into a sweet confection with various fillings.