The name is basically an inside joke — legend says a customer once complained the bread was 'gonggal' (all empty air inside), and the bakery just adopted the complaint as its official name.
A ring of yeasted dough is deep-fried until it puffs into a crisp, golden, mostly hollow shell, then dusted with sugar and sometimes honey. Bokraechun, a Chinese bakery in Incheon Chinatown that traces its roots to 1951, is often credited with popularizing the snack and its name, and vendors along the neighborhood's main strip sell it fresh alongside other Chinese-Korean street snacks.
Eomuk / Odeng (어묵)
Korean Corn Dog (핫도그)
Ssiat Hotteok (Seed Hotteok)