In medium glass bowl or dish, add fish, bitter orange marinade, lemon juice, celery, onion, garlic, hot pepper, cilantro, ginger and adobo. Mix gently to combine. Cover; refrigerate until fish is “cooked” by the citrus juice (it will turn opaque through the center), at least 4 hours, or up to 24 hours. Taste fish, add Adobo, if needed.
In large, heavy pot with tight fitting lid, heat 1/8” oil over medium-high heat. When oil is hot, shimmering but not smoking, add the corn; cover. Cook, shaking pan often. The corn will start to make a popping noise. Continue to cook until corn is golden brown and popping has subsided, about 10 minutes.
Drain corn on paper towels; season with Adobo, to taste.
To serve. Divide ceviche evenly among serving dishes. Serve toasted corn alongside or Peruvian Botija Olives.
Ceviche is an extremely popular way to prepare fresh fish all over South America, Central America and the Caribbean. This cooking technique involves marinating pieces of fresh fish in the juice of citrus fruit (like limes, lemons, oranges and grapefruit). As the fish marinates, the citric acid found in the fruit juice has a chemical effect on the fish’s flesh, altering the structure of its protein. The flesh turns opaque and firm, as if it had been cooked with heat.
When making ceviche, cut fish into 1” pieces, or smaller, to expose the maximum surface area of the fish to the citrus juice, and be sure the fish is submerged in the liquid. Allow the fish to marinate at least 4 hours, or up to 24 hours. You know the fish is “cooked” when it is opaque to its center.
Some fish that work well for ceviche are as follows: firm white fish, like tilapia, sea bass, halibut and snapper; fatty fish, like salmon, mackerel and tuna; shellfish, like shrimp, crab and lobster; and mollusks like conch, clams, mussels, squid and octopus.