noun
food simmered in soy sauce
A cooking method where vegetables or fish are simmered in a soy-sauce-based broth until the liquid reduces and flavors concentrate.
今日のおかずはサバの煮付けです。
Today's side dish is mackerel simmered in soy sauce.
母の作る大根の煮付けは絶品だ。
The simmered daikon my mother makes is superb.
煮物 is a broader term for simmered dishes, while 煮付け specifically refers to simmering in a soy-sauce-based broth until the liquid is reduced.
Compound of 煮 (ni, 'simmering') + 付け (tsuke, 'attaching, applying'), from the verb 煮付ける (nitsukeru, 'to simmer in soy sauce').