Geoduck
Also known as gooey-duck, king clam
The geoduck is a giant Pacific Northwest clam prized for sweet, crunchy meat, served raw as sashimi or pan-fried, with British Columbia a major harvest region.
About Geoduck
The geoduck (pronounced “gooey-duck”, from a coastal Salish word gʷidəq) is a very large saltwater clam native to the Pacific Northwest, its range spanning from Alaska down the British Columbia and Washington coasts. It is one of the largest burrowing clams in the world, growing a long siphon that can extend up to a metre and weigh well over a kilogram.
Despite its startling size, the geoduck is prized for its sweet, clean, briny flavour and its pleasantly crunchy texture. The muscular siphon is often sliced paper-thin and served raw as sashimi or in a crudo, while the sweeter belly (mantle) may be pan-fried, stir-fried or added to hot pots. Chinese demand has long made British Columbia one of the main commercial harvest regions.
Because the raw meat can be tough, cooks often tenderise or thinly slice the siphon, reserving the delicate belly for gentler cooking. In Vancouver and on the coasts of British Columbia, it appears in upscale seafood dining, Cantonese banquets and local poke and hot-pot menus alike.
🏛️ History & Culture
The geoduck is native to the Pacific Northwest coast, and its name derives from the Lushootseed word meaning "dig deep." Indigenous peoples of the region, including those in what is now British Columbia, have harvested this large saltwater clam for food and trade for millennia, relying on its abundance in intertidal mudflats. Its remarkable biology—a massive siphon that can extend several feet—made it a distinctive and sustainable wild resource.
In modern Canada, particularly British Columbia, the geoduck has become a high-value commercial fishery, with the vast majority of the catch exported to East Asian markets where it is prized for its crunchy texture and briny sweetness. Within Canada, it is often served raw as sashimi or lightly seared, reflecting the local preference for showcasing the freshness of the day's catch. While its global reputation has soared as an exotic delicacy, its enduring cultural significance lies in its deep connection to the coastal environment and the Indigenous heritage of the region.
🍳 How to make Geoduck
AI-assisted, not kitchen-testedWest Coast Geoduck Sashimi with Ponzu
Geoduck (pronounced 'gooey-duck') is a giant Pacific clam harvested along the coast of British Columbia. Its crisp, sweet mantle and belly are traditionally served raw in Canada, sliced thin and paired simply with citrus and soy.
- Prep
- 20 min
- Total
- 20 min
- Serves
- 4
- Difficulty
- Medium
Recipe ingredients
- 450 g (1 lb) geoduck siphon (neck) and mantle meat, fresh, shucked; freeze for parasite control
- 60 ml (¼ cup) soy sauce, Japanese shoyu
- 30 ml (2 tbsp) fresh yuzu or lemon juice, yuzu preferred for authenticity
- 15 ml (1 tbsp) rice vinegar
- 5 g (1 tsp) kombu dashi (powdered), or 1 small piece of kombu steeped
- 10 g (2 tsp) grated daikon radish
- 2 g thinly sliced green onion
- 1 g shichimi togarashi (optional), Seven-spice blend
- 4 g perilla or shiso leaves, for garnish
Steps
- 1 Freeze the geoduck meat solid at -20°C (0°F) for 7 days (or -35°C / -31°F for 15 hours) to destroy any parasites before raw service; thaw in the refrigerator overnight.
- 2 Bring a pot of water to a rolling boil. Briefly blanch the outer siphon skin for 15 seconds only, then transfer to iced water. This tightens the skin for easier slicing; do not cook the interior meat. Pat dry.
- 3 Slice the siphon crosswise into very thin rounds (about 3 mm / ⅛ inch). Slice the softer mantle meat the same way. Arrange on a chilled plate in a single layer.
- 4 Whisk soy sauce, yuzu or lemon juice, rice vinegar, and kombu dashi together to make the ponzu.
- 5 Spoon 15 ml (1 tbsp) ponzu over each portion, or serve on the side.
- 6 Top each serving with grated daikon, green onion, and a pinch of shichimi togarashi if using. Garnish with shiso leaves and serve immediately.
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