馅儿
xiànr · HSK 7
xian
🥟 馅 = 饣food radical + 臽; the 儿 is just an erhua suffix — the food packed inside
The food radical 饣 flags it as something edible, and 馅儿 is the filling stuffed inside dumplings, baozi, or mooncakes. Sound cue: xiànr rhymes with the start of shen-r, the soft inner part you bite into.