Choripán
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A choripán (plural: choripanes) is a popular sandwich in Argentina and Uruguay. The name comes from the combination of its ingredients: a grilled chorizo and a crusty bread (in Spanish: pan) such as a baguette. The chorizo may be used whole or cut in half lengthwise, in this case it is called a mariposa (butterfly). It is customary to add sauces on the bread, most likely chimichurri.
Choripanes are commonly served as an appetizer during the preparation of an asado, but they are also very commonly sold at sport venues (particularly soccer games) and on the sides of roads and streets in major cities in Argentina.