Fish

Buccinum undatum

A tier

Buccinum undatum is the common whelk of the North Atlantic—a large sea snail with firm, slightly sweet, iodine-tinged meat that needs gentle simmering to tenderise. Texture is steak-like for shellfish; flavour is robust and marine. Boil or steam in salted water with aromatics, then serve cold with mayo or slice into stir-fries and salads. Overboiling turns it rubbery. A British seaside and Korean market favourite depending on supply chains.