Anchovies: The Complete Guide
An anchovy can disappear into dinner or become the best thing on the plate.
Melt two fillets into olive oil and they stop tasting conspicuously of fish. They leave salt, savor and depth behind. Lay a large Cantabrian anchovy across buttered toast and there is nowhere for it to hide.
Both uses begin with the same small fish.
The differences come from species, season, handling, curing, packing and what the cook decides to do next.
What is an anchovy?
Anchovies are small, oily schooling fish found in temperate and warm waters around the world.
The species most closely associated with the anchovy traditions of Spain, France and Italy is the European anchovy, Engraulis encrasicolus. It lives throughout the eastern Atlantic, Mediterranean and Black Sea.
Other anchovy species are caught and preserved elsewhere, including along the Pacific coasts of the Americas.
“Anchovy” therefore describes a family of fish, not one universal product.
Why anchovies taste so savory
Anchovies contain naturally occurring glutamates, the compounds associated with umami.
Salt curing changes them further. As the fish mature, enzymes break proteins into smaller flavorful compounds. Moisture leaves, texture firms and the flavor becomes deeper and more concentrated.
The result is not simply salt plus fish.
A properly cured anchovy may carry flavors of roasted meat, aged cheese, olives, sea air and dried fruit alongside its marine character.
Fresh anchovies and cured anchovies are different ingredients
Fresh anchovies are delicate fish that can be fried, grilled or marinated.
The brown or reddish fillets packed in oil have been preserved through salt curing. They are denser, darker and much more concentrated.
White anchovies, commonly called boquerones, are generally preserved through an acidic marinade rather than a long salt cure. They remain pale, tender and bright.
These products are related, but they do not behave interchangeably.
Why Cantabrian anchovies are so prized
The Cantabrian Sea lies along Spain’s northern coast within the Bay of Biscay.
Its spring anchovy season, commonly called the costera de la anchoa, has supplied the preserving towns of the Basque Country and Cantabria for generations.
Fish caught during the preferred season are valued for their size, flesh and fat balance. Careful producers preserve them when the raw material is at its best rather than treating anchovy production as a year-round exercise in uniformity.
The fishery itself is only the beginning. The quality of the finished fillet still depends on handling, curing and handwork.
The Cantabrian preserving tradition
Northern Spain’s anchovy industry was shaped partly by Sicilian salters who brought their curing expertise to the Cantabrian coast in the late nineteenth century.
Local fish and Italian preservation knowledge developed into a regional specialty.
Towns including Santoña became closely associated with salting, maturing, filleting and packing anchovies. The work remains unusually manual even in larger houses.
How oil-packed anchovies are made
The broad sequence is simple:
- The fresh fish are landed and selected.
- They are layered with salt in barrels or other curing containers.
- Weight and time draw out moisture as the fish mature.
- The cured anchovies are removed from the salt.
- Skins, fins, bones and excess salt are removed.
- The fish are separated into fillets.
- The fillets are arranged and packed in oil.
Every stage contains opportunities to improve or damage the finished product.
Curing takes time
A salt cure is not merely a pause before packing.
It creates the anchovy’s mature flavor and texture.
The exact period varies by producer, fish and intended result. Ortiz states that its traditional anchovies mature for at least six months. Other houses may use longer or shorter maturation according to style and raw material.
Time alone does not guarantee quality. A long cure cannot rescue poor fish or careless cleaning. It must be supported by good temperature control, sound judgment and skilled finishing.
Hand filleting matters
Once the anchovies have matured, the cured fish must be cleaned and divided into fillets.
This is exacting work.
A good fillet should arrive largely intact, without a heavy fringe of bones, torn edges or ragged flesh. Removing too much damages the fish; removing too little leaves an unpleasant texture.
Large, neatly aligned fillets tell you something about the raw material and the labor invested after curing.
What good oil-packed anchovies look like
Color varies, but the fillets should generally look reddish-brown rather than gray, dried out or muddy.
They should be flexible and fleshy, not brittle.
The best examples have a clean, mature aroma and enough structure to lift from the package without immediately disintegrating.
Small silvery fragments of skin are not necessarily a flaw. Large bones, extensive tearing and harsh stale aromas are more concerning.
Texture separates table anchovies from cooking anchovies
A fine table anchovy has enough body to be enjoyed as a fillet.
It is dense but tender, with a clean finish and salt that supports rather than buries the fish.
An inexpensive cooking anchovy may be smaller, softer or more broken. That can be perfectly acceptable when it will dissolve into a sauce.
The mistake is not buying an inexpensive anchovy. It is paying table-anchovy prices for something that only performs as seasoning.
Olive oil affects the result
The packing oil protects the cured fillets from air and carries their flavor.
Some producers use olive oil; others use extra-virgin olive oil or a neutral vegetable oil.
Extra-virgin olive oil can bring fruitiness and bitterness of its own. A milder oil leaves the cured fish more exposed.
Neither approach is automatically superior. The oil should taste fresh and suit the anchovy rather than masking it.
Do not throw away good anchovy oil
The remaining oil is seasoned with salt and fish.
Use it in pasta, vinaigrette, mayonnaise, tomato sauce, roasted vegetables or on bread.
Taste first. The oil may be much saltier than ordinary olive oil, so season the rest of the dish accordingly.
Salt-packed anchovies
Salt-packed anchovies are closer to the cured fish before its final retail preparation.
They are generally sold whole or partially cleaned under a thick layer of salt. Before use, the fish must be rinsed, opened, deboned and separated into fillets.
The work is rewarded with control over cleaning, seasoning and oil.
Many cooks value salt-packed anchovies for their firm texture and deep cured flavor.
How to prepare salt-packed anchovies
Remove the fish you need and brush or rinse away the exterior salt.
Open each fish along the belly and remove the backbone, fins and any obvious small bones. Separate the two fillets and pat them dry.
If the anchovies remain aggressively salty, soak them briefly in cool water or milk. Do not leave them soaking so long that their flavor and texture wash away.
Cover prepared fillets with olive oil and refrigerate them if they will not be used immediately.
What are boquerones?
In Spain, boquerón is the ordinary word for anchovy, but outside Spain the plural boquerones commonly refers to pale anchovy fillets marinated in vinegar.
These are not simply brown salt-cured anchovies in a different sauce.
Acid changes the fish differently from a long salt cure. The flesh becomes white, tender and bright-tasting. Garlic, parsley and olive oil are common additions.
Boquerones taste fresher, sharper and less concentrated than traditional oil-packed anchovies.
Boquerones and cured anchovies together
Spanish bars sometimes serve a dark salt-cured anchovy beside a white vinegar-marinated anchovy.
The pairing is called a matrimonio, or marriage.
One fillet is deep, salty and mature. The other is cool and acidic.
It is one of the clearest ways to understand how preservation method changes the same fish.
Are boquerones raw?
Acid changes the appearance and texture of fish, but it does not cook seafood in the same way that heat does.
Commercial boquerones should come from a producer following the applicable parasite-control and food-safety requirements.
Making them at home requires more care than simply dropping fresh anchovies into vinegar. Use fish that has been appropriately handled and frozen for raw or marinated preparation.
What is colatura di alici?
Colatura is an Italian anchovy liquid associated especially with Cetara on the Amalfi Coast.
As salted anchovies cure, a clear amber liquid is collected, filtered and aged or rested according to the producer’s method.
The result is intensely savory and salty. It is related in spirit to ancient Mediterranean fish sauces, though modern colatura is its own living tradition rather than a museum reconstruction.
Use it by the teaspoon or drop, not by the ladle.
How to use colatura
The classic application is pasta with olive oil, garlic, parsley and sometimes chile or lemon.
Colatura can also season:
- Tomato salad
- Roasted or grilled vegetables
- Beans and lentils
- Vinaigrettes
- Mayonnaise
- Broths and soups
- Steamed or roasted potatoes
- Cooked greens
Add it late and taste before adding salt.
Anchovies disappear into sauces
When anchovy fillets are warmed gently in fat, they soften and break apart.
The finished dish need not taste overtly fishy.
Instead, anchovies can make tomato taste fuller, meat taste meatier and vegetables taste more complete.
This is why they appear in foods that many people do not think of as anchovy dishes.
How to melt anchovies properly
Warm olive oil or butter over low to medium-low heat.
Add the anchovies and press them with a spoon until they loosen into the fat.
Avoid scorching them. High heat can make garlic bitter, damage the oil and leave the anchovy flavor harsh.
Once dissolved, add the remaining ingredients.
Anchovies in tomato sauce
Begin with one or two fillets for a modest pan of sauce.
Melt them into olive oil with garlic or onion, then add tomatoes.
The anchovies should deepen the sauce without necessarily identifying themselves.
This approach is especially useful in quick tomato sauces that have not had hours to develop.
Anchovies with garlic, chile and pasta
Anchovies, garlic, chile, olive oil and pasta water form one of the pantry’s most dependable sauces.
Add breadcrumbs for texture, lemon for brightness or parsley for freshness.
Salt the pasta water less aggressively than usual because the anchovies will carry substantial seasoning.
Anchovies in puttanesca
Puttanesca brings anchovies into a larger system of tomatoes, olives, capers, garlic and chile.
The sauce succeeds because its salty ingredients do different jobs.
Anchovies provide dissolved savor. Capers bring sharpness. Olives add fruit and texture.
Taste before adding any further salt.
Anchovies in Caesar dressing
Anchovies contribute salt and depth to Caesar dressing alongside garlic, lemon, egg, oil and cheese.
Mash the fillets into a paste before emulsifying the dressing, or blend them with the other ingredients.
The quantity can be adjusted, but removing them changes more than the fish flavor. It removes part of the dressing’s foundation.
Anchovies and butter
Mash softened butter with anchovies, lemon zest, black pepper and herbs.
Use the finished butter on toast, steak, lamb, roasted vegetables, potatoes or grilled fish.
For the simplest possible version, put cold cultured butter on bread and lay one excellent fillet across it.
That preparation depends entirely on the quality of the anchovy.
Anchovies with eggs
Anchovies suit eggs because their salt and savor cut through the yolk’s richness.
Use them with soft-boiled eggs, scrambled eggs, omelets or deviled eggs.
A fillet with an egg, bread and bitter greens makes a complete small meal.
Anchovies with vegetables
Broccoli, cauliflower, cabbage, kale, puntarelle, peppers and tomatoes all benefit from anchovy seasoning.
Melt a fillet or two into olive oil, add garlic and dress the cooked vegetables with the mixture.
Acid remains important. Finish with lemon or vinegar so the dish does not become heavy.
Bagna càuda
Piedmont’s bagna càuda combines anchovies and garlic in warm oil or butter.
It is served as a communal dip for raw and cooked vegetables.
The preparation demonstrates anchovies at full volume. They are not hidden seasoning; they are the central flavor.
Anchovies with meat
Anchovies have a long history as seasoning for lamb, beef and other meats.
They can be mashed into butter, added to a braise or dissolved into a pan sauce.
Used carefully, they reinforce savor without making the meat taste like seafood.
How to serve fine anchovies straight from the package
Take refrigerated anchovies out shortly before serving so the oil can loosen and the flavor can open.
Arrange the fillets without crowding them.
Add one or two quiet accompaniments:
- Bread and cultured butter
- Tomato-rubbed toast
- Potato chips
- Soft-boiled eggs
- Roasted peppers
- Olives or piparras
- Lemon zest
A beautiful anchovy does not need an overloaded board.
What to drink with anchovies
Anchovies need freshness more than weight.
Dry sparkling wine, fino or manzanilla sherry, crisp white wine, cider and light beer are conventional partners.
For an alcohol-free table, dry sparkling tea supplies acidity, tannin and bubbles without adding sweetness.
Still or sparkling water with citrus is better than a sugary drink that fights the salt.
How to buy anchovies
Begin with the intended use.
For melting into sauce, buy a reliable everyday anchovy with good flavor. Perfectly uniform fillets are unnecessary.
For serving whole, look for larger, carefully cleaned fillets from a producer that identifies the fish, origin or curing method with some precision.
Packaging should be intact, without leaks, swelling or severe damage.
Refrigerated semi-preserves are not ordinary canned fish
Many high-quality oil-packed anchovies are semi-preserved rather than fully shelf-stable sterilized conservas.
They may require refrigeration even before opening.
Follow the storage instructions on the package. Do not assume that every metal tin belongs indefinitely in a room-temperature cupboard.
How to store anchovies after opening
Keep opened anchovies refrigerated and covered with oil.
Move them to a clean, nonreactive container if the original package cannot be closed securely.
Use clean utensils and follow the producer’s directions for how quickly the opened product should be eaten.
If the anchovies develop an unpleasant odor, visible mold or another sign of spoilage, discard them.
Anchovies may continue to change in the package
Because many traditional anchovies are semi-preserved, their texture and flavor can continue evolving.
They may soften and become more intense over time.
Cold storage slows this process. It does not suspend it indefinitely.
The printed date and producer’s instructions matter.
What about the white crystals?
Small pale crystals sometimes appear on mature cured fish.
They may be harmless amino-acid crystals associated with protein breakdown rather than mold.
Appearance alone, however, is not a universal safety test. If the package was improperly stored, damaged or smells wrong, do not use crystals as reassurance.
Are anchovies sustainable?
Sustainability depends on the species, stock, location, fishing method and management system.
“Anchovy” is too broad a category for a blanket answer.
The Cantabrian purse-seine anchovy fishery has received Marine Stewardship Council certification. Certification is useful evidence about a particular fishery, not a permanent guarantee covering every anchovy from every sea.
Look for fishery-specific information and credible certification rather than assuming that a small fish automatically carries no environmental concerns.
A working anchovy pantry
Most kitchens need only three forms:
- An everyday oil-packed anchovy for sauces and dressings
- A fine whole fillet for eating on toast or serving with conservas
- Colatura or salt-packed anchovies for cooks who want another expression of the fish
Boquerones belong in the refrigerator when a brighter, vinegar-driven style is wanted.
The smallest ingredient can hold the dish together
Anchovies have an unusual range.
They can be luxurious fillets arranged in a single shining layer. They can be a pale boquerón beside a glass of something cold. They can become amber colatura, disappear into tomato sauce or sit openly across bread and butter.
The cook decides whether the anchovy speaks or works backstage.
Both roles deserve a good fish.
Explore our tinned-fish collection, or read our guide to cooking heirloom beans for one of anchovies’ best pantry partners.
