The basic traditional ingredients for caldo verde are finely shredded Portuguese cabbage or couve-galega (essentially a type of collard green), (or alternatively other leafy greens such as kale or mustard greens), potatoes, olive oil, black pepper and salt, mainly flavoured with onion and garlic.[2][3] Some regional recipes favour slight variations, like turnip greens or added meat, such as ham hock, making it similar to Italo-American wedding soup. Traditionally, the soup is accompanied by slices of paio, chouriço or linguiça (boiled whole with the potatoes, then sliced and added to the finished soup when serving) and with Portuguese broacorn-bread or rye-bread for dipping.[4] In Brazil, the soup is accompanied by Pão francês, similarly to virtually all kinds of soups.[5] In Portugal, caldo verde is typically consumed during events such as weddings, birthdays and popular celebrations. It is sometimes consumed before a main course or as a late supper. It is traditionally served in earthenware bowls called tigela.[6]
History
Caldo verde originated from the Minho Province in northern Portugal, based on an earlier recipe brought to Portugal by English merchants.[7] Today, it is a traditional national favourite that has spread across the nation and abroad, especially to places where a large community of Portuguese migrants have settled such as Argentina, Brazil, Macau, Massachusetts, New Jersey, Rhode Island, and Toronto. References to the soup appear in many novels by Camilo Castelo Branco. In 2011, following the result of a public vote, the soup was announced as one of Portugal's Seven Wonders of Gastronomy, highlighting both its popularity and heritage in Portugal.[8] In neighboring Galicia (historically and culturally close to Portugal) a similar dish, caldo galego is also a culinary tradition.