noun
butter simmer; food cooked with butter
Refers to a dish or ingredient that is simmered or stewed with butter, often used in recipe names or menu descriptions.
今夜のおかずは鶏肉のバター煮です。
Tonight's side dish is chicken simmered in butter.
バター煮にすると、野菜がまろやかになる。
Simmering in butter makes vegetables mellow.