Flank steak
Flank steak is a steak taken from the abdominal muscles of the cow, located just behind the plate and in front of the rear quarter. It is a long, flat cut with a significant grain that is known for its chewiness and thinness. As a popular food, flank 'steak' is referred to differently across the globe and is prepared in a variety of ways in different cultures.
Terminology
In Brazil, flank steak is called bife do vazio or pacú. It is popular in southern Brazil specifically in Rio Grande do Sul state. The cut is also common in Colombia, where it is called sobrebarriga ; sobrebarriga a la brasa is a Colombian recipe for braised flank steak. Both Argentina and Uruguay call flank steak churrasquito de vacío or bife de vacío. In Spain and Cuba, flank steak is often referred to as falda. The names flank steak and skirt steak, which are two different cuts of beef, are often used interchangeably. For example, Skirt steak, which comes from the plate of the cattle, not the flank, is also referred to as sobrebarriga in Colombia, and as "entraña" in Argentina.History
Merriam-Webster records that the term "flank steak" was first used in 1902. More generally, steak originated in Scandinavia and Italy in the 15th century. In the late 1800s and early 1900s flank steak was a less-known cut of beef in Europe. Butchers often sold it at lower prices than other cuts. Flank steak became popular in North America in the mid 1900s. Soldiers returning from WWI and WWII played a role in flank steak's rise of popularity in the west. This led to the popularity of the cut of beef that exists today in North America.Flank steak also has a history in South America. Cultural traditions in Argentina, Chile, and Brazil encourage the usage of the entire animal to not leave waste. As a result, unlike the North Americans who preferred the more tender cuts, South Americans have been enjoying flank steak since approximately the late 1700s.