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Sardines on fennel salad with walnut pesto

Time 45 minutes
Yields Serves 4 to 6
Sardines on fennel salad with walnut pesto
(Mel Melcon / Los Angeles Times)
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Though most people are familiar only with canned sardines, the fresh ones are an entirely different fish -- small and rich, with a pronounced flavor that’s like a more assertive tuna. With the current passion for big rusticated flavors, it’s no wonder fresh sardines are showing up on so many high-end menus.

There seems to be a pretty general agreement that the best way to cook them is on the grill -- that is the standard preparation in both the Mediterranean and in Japan, the two places that love fresh sardines best. Grilling sardines couldn’t be simpler: Clean them, brush them with oil and cook them over a hot fire or under the broiler. (The best Japanese cook I know says her 100-year-old grandmother attributes her longevity to eating sardines -- without cleaning them. She says the innards add an interesting bitterness. Who’s going to argue?)

Fortunately, there are other ways to fix sardines as well. One popular method is curing them with vinegar, which sets off the rich flavor. In France, this is called escabeche. In Venice, they call it sarde en saor, and it is one of the most popular cicchetti, or finger foods. Almost any little bar you duck into for a glass of wine will have them (kind of like Buffalo chicken wings or pickled eggs here).

I also like sardines that crunch. That is the idea behind these mustardy ones. They’re broiled, but the fish can also be battered and deep-fried. They’re especially good as part of a mixed fry, served with some deep-fried squid and vegetables.

Fresh sardines are hard to find at mainstream groceries. You can usually get them by special order, but go to a Japanese market and you won’t believe your luck. Fresh, locally caught sardines, or iwashi, are almost always priced at less than $2 a pound, which will include five or six fish. Even the bigger and fatter imported Japanese sardines, usually about three to the pound, are frequently less than $4.

This has to be one of the best bargains at the seafood counter.

There is a dark cloud in all this silver lining, though, and that is that fresh sardines are almost always sold in the condition fishmongers refer to as “in the round.” What this seemingly innocuous phrase means is that the fish go straight from the ocean to the market with hardly a pause, including that for cleaning and gutting.

For cooks who are used to fillets, cleaning sardines can be a bit of an education. But if you ever went fishing as a kid, no problem, you’ve done it before and probably with a lot more difficult meat.

The flesh of the sardine is so tender and soft that you could probably do all of the cleaning using a butter knife. But in the interest of time and a neater piece of fish, you’ll probably want to use a paring knife.

Still, there’s not much to it. Begin by laying the fish on a board and making a small cut on the dorsal side right behind the head and straight down through the backbone. Make another incision on the belly side just behind the front fins. Holding the fish under running water, gently twist the head from the body. If you do this right, most of the innards will come away with the head. Discard these.

Using the same small knife, cut a slit the length of the belly and rinse out the inside. Lay the fish on its back on the cutting board and make two shallow parallel cuts the length of the backbone. You’ll want to be careful not to cut all the way through the meat.

With your thumb and forefinger, grasp the exposed backbone near the tail and pull up, using the fingers of your other hand to hold the meat in place. The backbone and larger ribs should lift cleanly away, leaving you a neatly butterflied fish.

Finish the preparation by scraping away the black skin along the ribs and cutting away the rib endings on either side. There will still be some bones left, but these will be so fine they won’t be a problem. Do check to make sure all of the bones around the collar of the fish are gone.

Because their flesh is so soft and oily, sardines tend to go bad pretty quickly (this was one of the reasons the canned fish industry was born). Fortunately, since the fish are sold in the round, judging condition is pretty simple. Look for sardines with bright, clear eyes, firm flesh and no sign of browning inside the gills.

The best sardines look like they came right out of the water, their bodies arched as if they were just interrupted while out taking a swim. Take that as a sign: Buy them fresh and cook them quickly and you’ll never feel closer to the ocean.

Walnut pesto

1

Puree the garlic and salt using a mortar and pestle or in a blender. Add the walnut halves and grind to a thick paste. Add the vinegar and puree a little more. The paste will loosen and smooth out.

2

Beat in olive oil just until the paste holds its consistency. When you see oil start to separate, stop.

3

Stir in the basil leaves and season to taste with more salt if necessary. The pesto can be prepared up to 2 hours before serving. Stir vigorously before serving.

Salad and sardines

1

Cut away the branches from the fennel. Chop and reserve about 1 tablespoon of fronds. Cut the fennel heads in quarters lengthwise and remove the solid core that runs down the center of each quarter. Slice the fennel horizontally as thin as possible using a heavy knife. Place the sliced fennel in a large work bowl.

2

Whisk together the lemon juice and one-fourth cup olive oil in a small bowl. Season to taste with salt. Pour over the sliced fennel and the reserved fronds, toss well and set aside to marinate while you prepare the rest of the dish. (The recipe can be prepared to this point up to 1 day ahead; refrigerate the fennel.)

3

Preheat the broiler. Pat the sardines dry on both sides. Season the meat side of the sardines with salt and arrange the fish skin-side up on a broiler pan. Drizzle lightly with a little olive oil and rub with your fingers to distribute it over the fish. Season the skin side with salt and broil until the skin is well browned and the fish is bubbling hot, 4 to 6 minutes.

4

Arrange the fennel in a low mound on the serving platter. Arrange the sardines over top. Spoon dollops of walnut pesto on top; serve immediately.