Latin

Swordfish Ceviche with Bottarga

Dense, meaty swordfish acid-cured in lime and finished with grated bottarga — two ocean flavors, completely different textures, meeting on a spoon.

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Appetizer / Cold Course
·
Swordfish
·
10–12
·
15 min prep + 30–60 min cure

The Whole Sea in One Bite

Most ceviche fish — snapper, sea bass, fluke — are flaky and delicate. They break down fast in acid. Swordfish is the opposite: dense, meaty muscle fiber with almost no connective tissue. It holds its cube shape for hours in lime juice without turning mushy. The texture stays firm with a slight chew — more like tuna tartare than traditional ceviche. Which makes it perfect for a boat day, when the container is sitting in a cooler for an hour before it reaches anyone's mouth.

Then the bottarga. Fine orange snow grated on top at the last moment. The ceviche is bright, clean, acidic — pure lime and raw fish. The bottarga drops a layer of briny, umami depth on top — like finishing sashimi with bonito flakes. Two ocean flavors meeting: one raw and fresh, one cured and concentrated. Completely different textures. The contrast is the dish.

Ingredients

for 10–12

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Everyday

The Ceviche

500 g swordfish steak (any fish counter — widely available)
6–8 limes, juiced (~120 ml)
½ red onion, very thinly sliced into half-moons
1 jalapeño, seeded and minced (leave seeds for more heat)
1 bunch cilantro, roughly chopped (stems included — more flavor than leaves)
1 tsp fine salt
1 tbsp good olive oil (drizzled at service)

Finishing

Flaky sea salt
Tortilla chips or saltines for serving

Substitution Notes

No swordfish? Mahi-mahi is next best — firm, meaty, holds up. Snapper works but softens faster (eat within 1 hour).
No fresh limes? Bottled works in a pinch but fresh is dramatically better — zest oils contribute aroma.

No Limits

The Ceviche

500 g swordfish steak — sashimi-grade if available (Honolulu Fish Co carries swordfish; ask for center-cut loin — fewer sinews, more uniform)
6–8 limes, juiced (~120 ml)
1 tbsp yuzu juice (adds floral citrus complexity lime alone can't reach)
½ red onion, thinly sliced, soaked 5 min in ice water (removes raw sulfur bite, keeps crunch)
1 jalapeño seeded and minced OR 1 tsp ají amarillo paste (Peruvian depth)
1 bunch cilantro, roughly chopped
1 tsp Maldon flaky salt
1 tbsp Arbequina EVOO, drizzled at service

Finishing — The Upgrade

Bottarga di muggine — whole piece + microplane. Grate fresh over each bowl right before eating. 15–20 passes per serving.
Maldon flaky salt
Microplane (bring it in the cooler bag)
Optional: 1 avocado, diced, folded in at the last moment (richness against the acid)
Tostones or high-quality plantain chips for serving

Mise en Place

0 of 8 prepped

Swordfish trimmed of sinew and bloodline, cut to uniform 1.5 cm cubes
Red onion thinly sliced (ice-water-soaked if No Limits)
Jalapeño seeded and minced (or ají amarillo measured)
Limes juiced — yuzu measured if No Limits
Cilantro washed, roughly chopped — HELD SEPARATELY (do not add to cure)
Avocado diced and held in lime juice (No Limits, if using)
Bottarga piece + microplane packed for the boat (No Limits)
Airtight container sealed, cooler pre-chilled

Method

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Prep the Fish

Inspect the swordfish steak. Run your finger across the surface — feel for tough sinew or bloodline (the dark red strip). Trim these with a sharp knife. They're chewy and bitter.

Cut the swordfish into 1.5 cm cubes — uniform size matters here. Pieces too small (1 cm) will over-cure and turn rubbery. Pieces too large (2.5 cm) won't cure at all in the center.

Hold fish cold while you prep everything else. Warm fish + acid = faster, sloppier curing.

Build the Ceviche

In a large bowl, combine swordfish cubes, lime juice (+ yuzu if using), sliced red onion, minced chile (or ají amarillo paste), and salt.

The liquid should come about halfway up the fish. Don't submerge completely — you want curing, not drowning. Half-submerged preserves the raw center.

Toss gently with a spoon or spatula. Do not mash — cubes should stay intact.

DO NOT add cilantro yet. Cilantro wilts and turns dark in acid. Add only at service.

Cure in the Cold

Transfer to an airtight container. Seal. Into the cooler (or refrigerator if home service).

Let cure 30–60 min. This is the sweet spot: firm exterior, sashimi center.

Check at 30 min. The outer 2–3 mm should be opaque white. The center should still be slightly translucent.

If you miss the 60-min mark and go to 90+ min, the ceviche is mostly opaque — still good but losing the raw-center contrast.

Finish & Serve

Open container. Fold in chopped cilantro — NOW, fresh, green, vibrant.

Fold in diced avocado if using (No Limits version).

Drizzle with EVOO.

Grate bottarga over the top (No Limits) — 15–20 passes on the microplane per serving. The fine orange snow melts slightly on contact with the cold, wet fish.

Finish with Maldon flaky salt.

Serve immediately with tostones, plantain chips, or just spoons.

Timeline

T-75 min — Prep Trim and cube swordfish (1.5 cm). Slice onion, soak in ice water if No Limits. Mince chile. Juice citrus. Wash cilantro (hold).
T-60 min — Build Combine fish, lime (+ yuzu), onion, chile, salt in bowl. Toss gently. NO cilantro yet. Transfer to sealed container.
T-60 to T-0 — Cure Into the cooler. Acid works for 30–60 min. Sweet spot for serving: 30–45 min total cure time.
T-2 min — Finish Open container. Fold in cilantro (fresh and green). Fold in avocado if using. Drizzle EVOO.
T-0 — Serve Grate bottarga over top (15–20 passes per serving, No Limits). Maldon. Serve with chips, tostones, or spoons.