Merca - Preserved Mullet (Merca)
Whole mullets briefly boiled in brine and wrapped in marsh grass. A traditional Sardinian preservation method from the Cabras lagoon.
Ingredients
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Instructions
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Scale the mullets but do not eviscerate them. Rinse well under cold water and pat dry.
Tip: The fish are cooked whole with their innards intact—this is traditional and contributes to the flavor. -
Bring a large pot of water to a boil. Add a generous amount of salt—the water should be very salty, almost like seawater.
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Immerse the mullets in the boiling salted water. Cook for 2 minutes, then remove from heat.
Tip: Do not overcook. The fish should be just barely set—this is a preservation method, not a full cooking process. -
Drain the mullets well and pat them dry with a clean cloth.
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Wrap each mullet tightly in marsh grass (salicornia, known locally as zibba). The grass wraps act as a natural preservative.
Tip: If you cannot find salicornia, wrap tightly in cheesecloth and store in the refrigerator—the keeping time will be shorter. -
The wrapped fish will keep for several days at room temperature thanks to the salicornia.
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To serve, unwrap the mullets. Fillet them, removing the bones and the intact innards. Arrange on a plate, drizzle with olive oil, and serve with pane carasau.
Storage & Meal Prep
Wrapped in salicornia, merca keeps for several days at room temperature. Wrapped in cheesecloth, it keeps for 2-3 days in the refrigerator. Once unwrapped and filleted, eat immediately.
Variations
- With Lemon: Squeeze fresh lemon over the fillets in addition to olive oil for a brighter finish.
- Pan-Fried Leftovers: If the merca has been kept a day or two, pan-fry the fillets briefly in olive oil for a different texture.
FAQ
What is salicornia?
Salicornia, called zibba in Sardinia, is a salt-tolerant plant that grows in the marshes around the Cabras lagoon. It is the traditional wrapping for merca and helps preserve the fish through its natural salt content.
Why is the fish not gutted?
In the traditional method from the Cabras lagoon, the mullets are cooked whole with innards intact. This is how the fishermen and women of the area have always done it. The innards are removed when you fillet the fish to serve.