Ceviche
With the issuance of the new Delicioso Forever stamps, the U.S. Postal Service celebrates the influence of Central and South American, Mexican and Caribbean foods and flavors on American cuisine. The booklet features stamps depicting tamales, flan, sancocho, empanadas, chile relleno, and ceviche.
Ceviche is a coastal Latin American tradition of the use of citrus juices and spices to marinate and cure fresh seafood. The dish is not actually cooked, but also not actually raw. Heat and citric acid are agents of the chemical process of denaturation. Either changes the proteins in the fish, which unravels and molecules and alters their chemical and physical properties.
This is a dish that may be traced back to the Incas, who preserved their fish with fruit juice, salt, and chili peppers. The Spanish conquerors introduced the limes, which are now essential in preparation.