Frying Medium For Fish

Bain de friture pour poisson (frying medium for fish) teaches one true thing: the oil's temperature must suit the fish's thickness, so the coating browns at the same moment the flesh finishes cooking. Too cool and the flour drinks oil. Too hot and the coat darkens while the centre remains raw. For these fillets, 180°C is the meeting point.

The original method assumed a large working fryer, repeated batches, and frying fat filtered and used until its strength was exhausted. A home kitchen has neither that turnover nor a brigade watching the vat, so fresh refined oil, a heavy pot, and a clip-on thermometer are the honest equivalents. Pushing dark oil to exhaustion was useful economy at scale; at home it becomes bitter and smoky. That scaffolding can go. The salted-milk steep, the light flouring, and the temperature control are the dish and must stay. One cook, one stove, one evening.

When it lands on the platter, the crust should be thin and crisp rather than armoured, with moist flakes beneath and only the faintest sheen of oil. Flour immediately before frying and wait for the oil to recover between batches. That pause decides the whole result.