Pira caldo
Along the Paraguay River from Asunción to Concepción, pira caldo is the fishermen's soup, said to restore strength after a long night: chunks of firm river fish poached in a broth of onion, peppers and tomato fried in fat, then made creamy with milk and melted fresh cheese. Surubí or other catfish is traditional; any firm white fish such as hake or pollock works. The mistake most people make is boiling the soup after the milk and cheese go in, which splits it. Chef's tip: fry the vegetables until they are very soft and sweet before adding the water; that is where the flavour comes from.











