Sole Montreuil

Sole Montreuil (sole gently poached in concentrated fish stock and white wine, with walnut-sized potatoes and two sauces) teaches coordination, not complication. The one true thing is restraint: fumet, a concentrated fish essence, and wine must barely tremble around the fish. A boil tightens sole before either sauce is ready to flatter it.

The original assumed a whole dressed sole, a stockpot of fumet never off the fire, and a saucier holding sauce au vin blanc (white-wine sauce) and sauce crevettes (shrimp sauce) for service. Here, four fillets of the same edible weight fit one lidded pan; the sauce crevettes is made first, and the cuisson (poaching liquor) becomes the sauce au vin blanc instead of being discarded. A blender and fine sieve do the pounding and straining once assigned to a mortar and tamis. That removes brigade scaffolding, not flavor. The equal measures of fumet and wine, the half ounce of butter in the poach, the intact potato ring, and both sauces remain exactly where the book put them. One cook, one stove, one evening.

On the platter, the sole should be tender beneath an ivory gloss, the potatoes whole and buttery-looking, and the coral sauce no broader than a ribbon drawn from a spoon. The two sauce finishes are the dish and must stay. Before you touch the pan, remember the step that decides everything: poach at the faintest tremble, never a boil.