This is the 1488th most frequent Japanese word.
餡
Sweet red or white bean paste.
In this sentence, '餡' is used to refer to the red bean paste filling inside the steamed bun.
この饅頭にはこし餡が入っています。
This steamed bun contains smooth red bean paste.
'餡' in this sentence refers to the general concept of bean paste and the effort involved in its preparation.
餡を作るには、多くの時間と手間がかかります。
Making bean paste requires a lot of time and effort.
Here, '餡' refers to a created bean paste to describe its taste and qualities.