Tender salt-cured fish rehydrated and dressed with lime, thyme, and sliced onion — a cornerstone of Saint-Martinoise everyday cooking.
On the French side of Saint-Martin (Saint-Martinoise cuisine), salmorejo refers not to the Spanish tomato soup but to a centuries-old technique of curing fish in sea salt to extend its shelf life across the tropical heat. Before electric refrigeration reached the island, fishermen would pack their surplus catch in coarse salt within hours of landing it, creating a dense, flavour-concentrated product that could last weeks. When ready to cook, the cured fish is submerged in several changes of cold water to draw out the excess salt, leaving flesh that is firm, pleasantly briny, and remarkably versatile. The classic Saint-Martinoise preparation keeps things simple and bright: the desalted, flaked fish is dressed with good olive oil, thin-sliced onions, fresh lime juice, and dried thyme — essentially a warm salad that lets the quality of the fish speak for itself. The onion mellows into the lime acid while the thyme adds an herbal note that evokes the island's hillside scrublands. The result is a dish that lands somewhere between a vinaigrette salad and a light protein main — clean, savoury, and extraordinarily satisfying eaten with thick slices of crusty bread or over steamed white rice. Saint-Martinoise cooks serve salmorejo at midday, when the Caribbean heat demands something substantial but not heavy, and the dish's balance of protein, fat, and brightness delivers exactly that.
Serves 4
Place salt-cured fish in a large bowl and cover with cold water. Soak for at least 2 hours at room temperature, changing the water once after the first hour. The fish should taste pleasantly salty but not harsh — taste a small flake to judge.
For very thick cuts, soak overnight in the refrigerator with two or three water changes for better salt control.
Transfer the soaked fish to a saucepan and cover with fresh cold water. Bring to a gentle simmer over medium heat and cook for 8–10 minutes. This final cooking removes residual salt, firms the flesh slightly, and makes it easier to flake cleanly.
Do not boil hard — a gentle simmer keeps the fish flaky and moist, not stringy.
Drain and allow to cool until comfortable to handle. Remove all skin and pick out any bones carefully — run your fingers along the flesh against the grain to find hidden pin bones. Flake into generous bite-sized pieces and set aside.
Flaking while still slightly warm gives larger, more appealing pieces than flaking cold fish.
In a wide bowl, whisk together olive oil and lime juice until slightly emulsified. Add sliced onions, dried thyme, and minced scotch bonnet if using. Toss the onions well so they begin to soften slightly in the acid — let them sit for 2–3 minutes.
Adding a tiny pinch of sugar to the dressing balances the lime's sharpness and rounds out the flavour without making it sweet.
Add the flaked fish and diced tomato (if using) to the dressing. Fold gently with a spatula — you want to coat every piece without breaking up the flakes. Taste carefully for salt (the fish will still carry some) and season with black pepper.
The dish tastes best if you let it sit for 5 minutes before serving so the fish absorbs the dressing.
Pile the salmorejo onto plates or a communal serving dish. Serve at room temperature alongside crusty bread, steamed white rice, or sliced avocado. A drizzle of extra olive oil over the top finishes it beautifully.
Never skip the soaking and simmering steps — salt-cured fish without proper desalting is aggressively salty and ruins the dish. Two hours minimum soaking plus a brief simmer is the reliable method.
Always taste the fish before assembling the dressing. Salt levels vary significantly between brands and fish types; adjust your lime juice and seasoning accordingly.
For the best texture, use a firm-fleshed salt fish — salt cod (bacalao) or salt mackerel hold up to flaking far better than delicate white fish varieties, which can turn mushy.
Slice the onions very thin so they soften in the lime juice within minutes. A mandoline or a very sharp knife at a low angle gives the translucent slices that melt into the dressing.
Serve this dish at room temperature, never cold from the refrigerator — the olive oil solidifies when chilled and the flavours fall flat. If you've stored it, let it sit at room temperature for 15 minutes before serving.
Classic Saint-Martinoise style: add diced avocado and a handful of chopped flat-leaf parsley for a richer, more herbaceous version that works as a full lunch salad.
Salt fish croquettes: mix the dressed salmorejo with mashed potato, form into patties, and pan-fry until golden — a popular street-food transformation across the island.
Rice bowl: serve the salmorejo over coconut-steamed rice with a fried egg on top for a complete, sustaining midday meal.
Creole enriched: add diced roasted sweet peppers and a tablespoon of colombo spice to the dressing for a more aromatic, French Caribbean profile.
Store in an airtight container in the refrigerator for up to 3 days. The onions will continue to soften and the flavours deepen over time — many cooks find it better on day two. Do not freeze, as the fish texture deteriorates. Return to room temperature before serving and freshen with a squeeze of lime.
Salt fish preservation has been practiced in the Caribbean since the 17th century, when European colonial ships brought dried cod and salted fish as provisions and traded it across the islands. On Saint-Martin, a crossroads island shared between France and the Netherlands, various salt fish traditions blended together. The island's Saint-Martinoise name for salt-fish preparations — salmorejo — likely reflects both the Spanish word for a marinade or pickle (salmuera) and the Portuguese word for preserved fish, carried through centuries of Atlantic trade routes. By the 18th century, salt fish had become the primary affordable protein for working people across the Eastern Caribbean, and each island developed its own signature preparation. Saint-Martin's version is distinguished by its French-influenced simplicity: high-quality olive oil, acid, and fresh aromatics rather than heavy sauces.
They are related but not identical. Bacalao specifically refers to salt-cured cod, while salmorejo in the Saint-Martinoise tradition refers to the preparation method — any firm salt-cured fish dressed with lime, oil, and aromatics. If you use salt cod for this recipe, you are making a version of both.
Taste a small piece after the soak and simmer. It should taste pleasantly salty — similar to well-seasoned food — not mouth-puckering. If it's still aggressively salty, return to fresh cold water for another 30 minutes and simmer again briefly.
You can, but the dish will taste quite different — the curing process concentrates and transforms the fish's flavour. If using fresh fish, season it generously with salt, let it rest 15 minutes, then proceed from the simmering step. Poach it in lightly salted water rather than plain water.
Caribbean, Latin American, Portuguese, and Spanish grocery stores reliably stock salt cod (bacalao). Asian grocery stores often carry salt mackerel or other salt fish varieties. Online retailers ship vacuum-packed salt cod as well. Avoid the pre-shredded tinned versions — the texture is inferior for this dish.
Yes — salmorejo actually improves with 1–2 hours of resting, which allows the fish to absorb the dressing and the onions to mellow. Prepare it up to 4 hours ahead and keep at room temperature if your kitchen is cool, or refrigerate and bring back to room temperature before serving. Add a final squeeze of lime and drizzle of oil just before serving to refresh the flavours.
Per serving · 4 servings total
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