It's so closely tied to curing hangovers that many Guayaquil stalls only start selling it after sunrise and often sell out entirely by mid-morning.
Chunks of albacore or tuna simmer with yuca in a tomato broth, topped generously with pickled red onion, cilantro and a squeeze of lime. Street stalls around Guayaquil serve it in disposable bowls with fried plantain chips on the side.