Ceviche is a popular seafood dish in Central and South America made from raw seafood (usually fish or shrimp) marinated in citrus juices. Today, it is most associated with Peru, who even has a holiday to celebrate the dish (June 28, if you’re interested). Spaniards arriving in the Americas found that the pre-Inca peoples of Mocha had a similar dish, which used the fermented juices of the banana passionfruit. There is archeological evidence of ceviche’s consumption as far back as 2,000 years ago.
Unlike Peruvian ceviche, the Mexican variation often includes tomatoes, jalapeños, and green olives. That’s the variation we’re going to make today.
When choosing a fish, it’s best to use a white ocean fish like sea bass, grouper, halibut, or flounder. Keep the fish as cold as possible while preparing it, and be sure to remove the blood line (the dark line down the center of some fish) to keep the dish from tasting too “fishy”. I also prefer to combine the ingredients near the end; red onions steeped in lime juice will color the dish prematurely.