Name: Rímac-inspired ceviche with local-market cojinova
Prep time: 24 min
Cook time: 22 min
Total time: 81 min
Cuisine: Peruvian cuisine
Ingredients: 600 g cojinova white fish — boneless, skinless, thawed safely, supplied for raw consumption; 165 ml fresh Peruvian-style lime juice — freshly pressed and strained, not bottled; 165 g red onion — peeled and thinly sliced into feathers; 12 g ají limo — seeded and finely chopped; use gloves; 5 g fine salt — measured; 8 g fresh cilantro leaves — washed, dried and finely cut; 400 g peeled camote (sweet potato) — 2 cm slices; 1050 ml water — for cooking sweet potato; 75 g ready-to-eat cancha — toasted Peruvian maize, kept dry

Rímac-inspired ceviche with local-market cojinova — a practical household adaptation

Yield 4 plated portions

Prep 24 minutes

Cook 22 minutes

Passive 35 minutes

Total 81 minutes

Ingredients ↓

Overview

Rímac-inspired ceviche with local-market cojinova — a practical household adaptation

A local-market approach to ceviche begins with the fish actually available from a knowledgeable seller, not a claim that one species belongs exclusively to a district. This Rímac-inspired preparation uses cojinova, a fish found in Peruvian ceviche recipes, and retains the familiar lime, ají limo and onion dressing.

Cojinova is cut into even cubes and dressed immediately before serving. Its delicate texture calls for gentle folding rather than vigorous stirring. Sweet potato accompanies it, together with crisp cancha, so the plate has sweetness and crunch without adding extra ingredients to the raw dressing.

The local-market approach gives the fish centre stage while keeping the Rímac connection a practical Lima serving context. Select only fish explicitly suitable for raw service and keep the pre-cooked additions cold and separate from the fish until plating.

Ingredients

For the raw fish and dressing

600 g cojinova white fish — boneless, skinless, thawed safely, supplied for raw consumption
165 ml fresh Peruvian-style lime juice — freshly pressed and strained, not bottled
165 g red onion — peeled and thinly sliced into feathers
12 g ají limo — seeded and finely chopped; use gloves
5 g fine salt — measured
8 g fresh cilantro leaves — washed, dried and finely cut

Cooked and ready-to-eat sides

400 g peeled camote (sweet potato) — 2 cm slices
1050 ml water — for cooking sweet potato
75 g ready-to-eat cancha — toasted Peruvian maize, kept dry

Method

Simmer the accompaniment.Put 400 g of peeled camote slices in a saucepan with 1050 ml water, bring to a steady simmer and cook for 22 minutes. Drain without mashing. A fork enters the thickest camote slice without resistance.
Chill the cooked side.Spread the drained camote on a shallow tray and chill it for 35 minutes, keeping it separate from fish. The sweet potato pieces are cool, intact and no longer steaming.
Organise the garnishes.Arrange ready-to-eat cancha on separate clean serving plates. Keep toasted corn or plantain chips in a dry bowl. The prepared garnish is ready: all packaged crisp garnish is dry.
Dice the cold fish.Cut 600 g of raw-use cojinova white fish into even roughly 2 cm cubes. Keep the fish chilled at 4 °C or below until this point and work with a clean chilled bowl. The fish cubes are evenly sized, cold and free of visible bones.
Dress with lime and chilli.Season the fish with 5 g fine salt and 12 g finely chopped ají limo. Add 165 ml strained lime juice and fold carefully. The cubes are evenly coated and a light citrus liquid gathers at the bottom of the bowl.
Fold in onion and serve.Add 165 g thin red onion and 8 g cilantro. Fold just until the onion is coated and divide the fish among 4 plates; serve the cooked sides alongside without waiting. The onion stays crisp and the fish pieces remain recognisable, not shredded.

Practical

Success points

Select fish supplied for raw service with verified parasite controls. Prepare, cook and chill the sides before cutting the fish. Keep the fish and bowl cold and add the lime only at the end.

Serving and make-ahead

Cojinova is identified by name because fish categories can be ambiguous across markets; ask the seller to confirm species and raw-use handling. Keep it at or below 4 °C after thawing under refrigeration. Place cancha on the side as soon as the dressed fish reaches the table.

Ingredients and substitutions

Corvina can provide a more familiar firm-white-fish alternative only if it also meets raw-consumption controls; the texture and flavour will differ. Do not use the citrus mixture to rescue fish of uncertain provenance.

Troubleshooting

The cojinova looks shredded: The fish was not well chilled or was folded forcefully. Use a cold bowl and only two or three gentle turns.

Nutrition per serving (estimated)

Serving size1 of 4 portions, including specified sides
Calories340 kcal
Carbohydrate41.7 g
Protein34.0 g
Fat4.3 g
Fibre5.3 g
Sodium664 mg

Allergens and food safety

Allergens: Fish. Check packaged cancha, and other prepared sides for additional allergens and cross-contact. This rímac-inspired ceviche with local-market cojinova contains raw fish even after the lime is added. Buy fish from a supplier who confirms its suitability for raw consumption, including necessary parasite controls; hold at or below 4 °C and serve immediately. Lime does not destroy all parasites or germs. Pregnant people, children, older adults and those with weakened immune systems should avoid raw seafood. Cooked fish at 63 °C is safer but produces a different dish.

Closing

The finished rímac-inspired ceviche with local-market cojinova combines cold citrus-dressed raw fish with its separate cooked or crisp sides. Controlled raw-fish sourcing, continuous chilling and immediate service are essential; lime changes texture but not seafood safety.