Peruvian Ceviche With Potatoes, Halibut, And Mango

1. Bring a large saucepan of water to a boil over high heat. Add the potatoes; boil for 5 minutes.
2. Add the corn and boil until the potatoes are tender, about 5 minutes. Drain in a colander set in the sink, place in a large non-reactive bowl (see note), and cool to room temperature, about 1 hour.
3. Add the fish, mango, onion, jalapeno, lime juice, cilantro, salt, and pepper; toss well. Cover and refrigerate for at least 6 hours or up to 24 hours, tossing occasionally. Serve in lettuce cups, or with baked tortilla chips.

Note

A nonreactive bowl is one that will not form harmful chemical compounds when acid (as in the lime juice here) touches its surface. Nonreactive materials include heat-safe glass, stainless steel, enameled iron, or enameled steel. Reactive cookware is made of tin, copper, and non-anodized aluminum; certain dyes and chemicals in decorative glass and pottery are also reactive.