Locro (from the Quechua ruqru) is a hearty thick stew popular along the Andes mountain range. The dish is a classic Ecuadorian cheese and potato soup from the Ecuadorian cuisine. This is also a dish in Peruvian cuisine, which at one point held the center of the Inca empire. It typical also in Argentina prepared by the different native Indian tribes at the time of the Spanish conquest. Its origin dates to before the Spanish colonial times.
The defining ingredients are corn, some form of meat (usually beef, but sometimes beef jerky or chorizo), and vegetables. Other ingredients vary widely, and typically include onion, beans, squash or pumpkin. It is mainly eaten in winter.
In Argentina it spread from the Cuyo region to the rest of the country. It is considered a national dish and is often served on May 25, the anniversary of the May Revolution.
In some parts, such as in the Santiago del Estero Province of Argentina, a red hot sauce made from red peppers and paprika known as quiquirimichi is served on the side.