Sole à la Russe

Sole à la Russe (sole in the Russian manner) teaches the discipline of reduction. The poaching liquor carries carrot, onion, white wine, fumet, and the sweetness of the fish, then becomes the sauce without flour or cream to hide behind. Know one thing before touching a pan: measure the liquid, don't trust the clock. Its volume tells you when the flavour is ready.

The original assumed a fish station to skin the sole and loosen its fillets, a saucier with fumet never far from the fire, and enough hands to move fish, vegetables, and liquor between dishes without delay. At home, ask the fishmonger to prepare two modest soles, use one deep baking dish for poaching, and return the liquor to the same saucepan used for the vegetables. The proportions remain those of the entry, scaled to feed four. The grooved carrot is brigade decoration, so a vegetable peeler replaces the channel knife, or the roundels may remain plain. The thin slicing matters; the grooves do not.

What stays is the dish itself: the first reduction by half, butter tucked beneath the upper fillets, frequent basting, the second hard reduction, and monter au beurre, whisking cold butter into the liquor away from the heat. The decisive moment comes after the fish leaves the dish. Reduce the liquor to 140 ml before adding the butter, and the sauce will coat the sole in a pale, concentrated gloss.