PeruvianMedium · Cold
Fresh tuna cured in bright lime with juicy mango and fragrant cilantro — a crisp Peruvian-inspired ceviche that captures the exact moment briny fish meets citrus perfection.
15 min
30 min
15 min
Method
Rinse the fresh tuna under cold water and pat completely dry with paper towels. Cut into 1-inch cubes, removing any blood lines or dark flesh.
Juice all 8 limes into a large non-reactive bowl — you need about 1 cup of fresh lime juice.
Thinly slice the yellow onion and soak in the lime juice for 3 minutes to mellow the bite.
Cover and refrigerate for exactly 20 minutes. The edges should turn opaque while the center stays ruby-raw — that moment is everything.
Serve immediately in chilled bowls. Fan avocado slices alongside. Add sweet potato slices and corn kernels on the side for the traditional presentation.
Bring a pot of salted water to boil. Add sweet potato slices and cook until tender, approximately 12-15 minutes. Test with a fork — they should easily pierce through. Drain and set aside to cool.
Nutri-Score
Excellent balance
A–E · lower is better · score -6
Calories
363
per serving
Protein
34g
Carbs
40g
Fat
11g
Sat. fat
3g
Fiber
10g
Sugar
12g
Sodium
1176mg
Nutri-Score is a general nutritional-balance guide, not medical or dietary advice.
Environmental impact
Estimated footprint
Grade pending · 75% ingredient coverage
kg CO2e
≥0.3
per serving
Corn drives 32% of this recipe’s estimated footprint.
Carbon from Poore & Nemecek 2018; water, land & runoff from Agribalyse — modelled averages for comparing recipes, not a measurement of your groceries.
Flavor Profile
Umami
Sweet
Salty
Sour
Bitter
Spicy
Textures
Aromas
Kitchen Equipment
Primary Tool
Large BowlTechniques
Safety & Storage
Handling
Tuna is served raw/undercooked (ceviche style). The 20-minute lime cure denatures proteins but may not eliminate all parasites. Handle raw fish with clean utensils and wash hands thoroughly after contact.
Cross Contamination
Use separate cutting boards and utensils for raw tuna. Never place ready-to-eat foods (avocado, mango, cilantro) on surfaces that have contacted raw fish without proper sanitization in between.
Cooking Temperature
Refrigerate lime juice and tuna mixture at 40°F (4°C) or below during the 20-minute cure. Ensure all ingredients remain cold. Serve in pre-chilled bowls.
Shelf Life
Consume immediately after assembly. Do not store leftover ceviche - raw fish quality deteriorates rapidly after the cure. Maximum safe consumption is within 1-2 hours of serving.
High Risk Population
Raw fish poses significant risk to pregnant women, elderly, children under 5, and immunocompromised individuals due to potential parasites (Anisakis) and bacterial contamination. Recommend fully cooking tuna to 145°F (63°C) for these populations.
Allergen Warning
This dish contains tuna (fish). Cross-contact with other allergens is possible. Verify all ingredient labels for hidden fish derivatives.
Ingredient Preparation
Sweet potato must be cooked before serving raw alongside ceviche. If serving cooked sweet potato slices with raw fish ceviche, ensure strict separation of utensils and surfaces to prevent cross-contamination. Cook sweet potato to soft texture (internal temperature not critical but must be fully tender).
Pro Tips
Technique
The cure is a conversation between acid and protein — twenty minutes gives you opaque edges with a ruby center. Any longer and the tuna turns mealy; any shorter and it is just raw fish in juice. Watch the clock, trust your eyes.
Substitution
Fresh sea bass or flounder work beautifully if you cannot find sushi-grade tuna, though I have also cured delicate scallops in just twelve minutes with extraordinary results.
Time Saver
Soak your sliced onion in the lime juice while you prep everything else — it does the work of mellowing itself while you dice the mango and chop cilantro. Time saved, flavor deepened.
Storage
Ceviche waits for no one. Eat it within thirty minutes of adding the lime cure, or the fish continues to cook and the texture turns tough. This is a dish that demands you be present.
From the chef
Fresh tuna cures differently than white fish — it holds a ruby center longer, firmer against the lime, and that is exactly what you want here. Eight limes, twenty minutes, cayenne that warms rather than bites: the edges turn opaque while the core stays vivid. The mango comes in at the end, diced just large enough to register as sweetness against the sharp acid, and cilantro carries it all forward. Yellow onion, soaked first to take the edge off, gives raw crunch throughout. Serve cold, in chilled bowls, with avocado fanned alongside and sweet potato on the side. The cure does the work. You just have to time it right.
Source: generated · June 10, 2026