Filets de Soles Lady Egmont

Filets de Soles Lady Egmont (folded sole fillets glazed with mushrooms, asparagus, and cream) teaches one exact lesson: reduce before you enrich. The poaching fumet and mushroom liquor must lose half their volume before the butter and cream enter; otherwise the sauce is pale, loose, and unable to cling. Get that reduction right and the dish arrives pearly, ivory, green-tipped, and glossy beneath its quick glaze.

The original assumed a poissonnier tending the fish, a saucier on staff, a stockpot never off the fire, brigade portions held in sequence, and a salamander fierce enough to color sauce in seconds. At home, use eight fillets for four, fine fumet already prepared, one broiler-safe earthenware dish, and the broiler at full heat. The divided labor and holding pots were scaffolding, so they go; the folded fillets, freshly cooked asparagus, exact reduction, real butter and cream, and last-second glaze are the dish, so they stay. One cook, one stove, one evening.

Work in order because poached sole won't improve while it waits: asparagus first, mushrooms next, fish last, then reduction, sauce, and glaze without interruption. The step that matters most is measuring the combined liquor and stopping its reduction at exactly half.