San Sebastián, Basque Country
San Sebastián's celebration dish — live spider crab (txangurro) is cooked, disassembled, and the meat combined with a slow sofrito of tomato, onion, brandy, and txakoli, then returned to the shell and gratinéed under breadcrumbs. The empty carapace becomes both presentation vessel and flavour catalyst — the briny interior seasoning everything cooked within it. This is the Basque approach to luxury: the ingredient is the ingredient. No cream, no masking sauces. The coral and the interior juices are scraped clean and incorporated into the sofrito. Nothing of value is discarded.
Spider crab must be purchased live — the meat deteriorates within hours of death. Cook in heavily salted boiling water for 15-18 minutes. Cool in the cooking liquid. Extract all meat including the coral — this enriches the sauce fundamentally. The sofrito cooks long and slow (30+ minutes) before adding the crab meat. The final gratin must be brief — 3-4 minutes under a very hot grill.
A small amount of cognac flambéed into the sofrito before adding the crab adds a rounded depth. If txangurro (spider crab) is unavailable, brown crab works structurally but the flavour profile is different — milder, less briny. Serve in the natural shell at the table. Prepare the shells the day before for service to keep service smooth.
Overcooking the crab at the initial stage — it will be gratinéed again and will tighten further. Discarding the coral — this is the richest flavour component. Using too much breadcrumb — it should crust, not absorb. Under-seasoning the sofrito base. Buying crab dead from the display — the flavour will be muddy.
The Basque Book by Alexandra Raij