Caldillo de congrio (Spanish for Cusk-eel stock) is a Chilean fish dish. The dish is made of congrio Dorado (pink cusk-eel) or Colorado (red cusk-eel),[1] a cusk-eel species common in the Chilean Sea.[2][3] The dish is made by boiling together fish heads, onion, garlic, coriander, carrots and pepper. Once these are boiled, only the stock is used.