In old cookery texts this character means to deep-fry or to blanch food.
Tips
history
煠 is not used in standard modern Chinese; it is a classical and dialectal cooking verb for deep-frying or scalding (still seen in some regional menus, read like 炸). It is the fire radical 火 plus the phonetic 枼, the phonetic also in 碟 and 蝶.
register
Classical and dialectal only; standard modern Chinese uses 炸 for deep-frying.