Chueotang

Koreans have eaten loach for centuries, but chueotang as a named, recorded preparation is more recent, with the whole-loach and ground-loach methods appearing in early-twentieth-century cookbooks; an older relative, a dish of live loaches burrowing into a block of tofu, is recorded in a nineteenth-century miscellany. Regional schools diverged: Seoul keeps the loaches whole in a beef or tripe broth and even calls the dish chu-tang, while Namwon and the Gyeongsang region grind the loach into a doenjang soup. Namwon, set among the Sobaek range and Jirisan where the Yocheon and Seomjingang tributaries make rich loach habitat, became the national capital of the ground style; a chueotang street grew up beside its Gwanghallu garden, and a restaurant founded there in 1959 is widely credited with launching the city's fame, though that origin is a single local account. A folk etymology ties the character chu to autumn, since loach fatten when the paddies are drained at harvest, but linguistically the autumn sense is a later reading.

Thick and almost porridge-like from the perilla, with a clean, savory-nutty rusticity that hides any trace of the fish itself. The base is earthy and faintly muddy-sweet, the loach long gone to a smooth body, the greens giving soft, slightly chewy bulk. Then the sancho lands: a numbing, citrus-pine aromatic stirred in at the table that lifts the whole bowl and cuts the richness. It is comfort food that warms from the inside, eaten with rice and a sour kimchi on the side.

Grinding the whole boiled loach and sieving out the bone does three things: it gives the soup a smooth, thick body, it dissolves the small bones into the broth as calcium, and it lets the whole-fish nutrition fully incorporate; the ground method also originally helped diners get past the sight of whole fish. Loach is rich in fat, protein and vitamin A, comparable to eel, which underwrites its billing as a restorative. The earthy, muddy character of the fish is tamed by three agents working together: doenjang masks the earthiness, perilla adds nutty richness and body, and the prickly-ash sancho, traditionally held essential, cuts the smell. The loaches are purged in clean water and rubbed with salt to shed their slime before cooking.