Eight-Treasure Tofu

"Eight-treasure" (ba zhen) dishes belong to an old banquet tradition across northern China, the number standing not for a fixed list but for a generous gathering of prized ingredients. In Tianjin — a port city at the mouth of the Hai River where river fish, sea fish and shellfish all come cheap and fresh — the idea attached naturally to tofu, the city's everyday staple, lifting it to banquet rank by surrounding it with shrimp, squid, sea cucumber and chicken. The exact origin of this particular dish is not recorded; it stands in the city's restaurant repertoire as one of the "sea-and-river fresh" plates that define Tianjin cooking, where the local boast is that the place "is good at eating" (the wei zui zi, the "Tianjin gourmet's mouth").

Lift a piece and it gives slightly — a thin, springy fried skin over a center still soft as warm custard. The skin has drunk in the broth, so the first taste is pure sea-savor; behind it the tofu is mild and creamy, a quiet ground for the richer things around it. Plump shrimp snap, squid is tender, sea cucumber slips smooth and gelatinous, and the whole dish is bound by a glossy, full-bodied stock that you want to spoon over rice. Nothing is fried-hard or heavy; the richness is all in the broth.

Two crafts carry the dish. First the fry: soft tofu is dried and slid into hot oil so the surface sets into a tough, golden skin while the inside stays raw-soft — this skin is what lets the tofu braise without collapsing and is what holds the broth. Second the stock: a clear chicken-and-pork stock, rather than plain water, is what "eight treasures" demands, because the tofu and seafood add little color of their own and lean entirely on the broth for depth. The seafood goes in by hardness — sea cucumber and chicken first, squid and shrimp last — so nothing toughens. A final thin starch glaze (gou qian) thickens the broth just enough to cling to every piece and gloss the dish; over-thickening turns it pasty and is the usual fault.