May 29, 2009

Ceviche

Summer is only a few days away, but here in Florida it has practically arrived: humidity, rain, storms, and heat. This is the weather that sends me looking for something cool and bright instead of another steaming plate. So I am returning to the summer food series with ceviche, a dish that knows a thing or two about refreshing the senses.

Ceviche appears in many forms across Latin America, from Peru to Mexico and beyond. Its history and even its name have several proposed explanations: the Quechua word siwichi, a connection to Spanish escabeche and Arabic sikbaj, or the fish itself. The stories differ, and so do the recipes. That variety is part of the appeal.

The common thread is citrus. Lime, lemon, or another citrus juice adds brightness and changes the fish’s texture by denaturing its proteins. The flesh becomes firmer and more opaque, which is why people say the juice ‘cooks’ it. But this is not the same as cooking with heat: citrus does not reliably eliminate harmful bacteria or parasites. Use fish specifically sourced and handled for raw consumption, keep everything refrigerated, and do not treat freshness or the lime juice as a safety guarantee. For a fully cooked version, start with cooked seafood. The FDA’s seafood guidance explains the difference.

I build ceviche much like salsa: a base, a few supporting ingredients, and an accent to tie everything together. Fish or shellfish supplies the base. I like the texture of shellfish and the richness of salmon, even though salmon is not the most traditional choice. Its fattiness works especially well with avocado and onion. Vegetables or fruit can provide the supporting flavors, but I follow two rules:

  • Keep it simple: three or four supporting ingredients are plenty.
  • Keep the flavors in a coherent direction, whether Mexican-inspired, Japanese-inspired, or your own combination.

Finally, choose an herb or spice as the accent. A little goes a long way when the rest of the ingredients are fresh and bright.

For this version I chose a Mexican-inspired combination. By all means, use the flavors you enjoy most.

Ceviche step 1

Base:

  • 1 lb salmon, sourced and handled for raw consumption
  • 5–8 limes

Filler:

  • 3 medium tomatoes
  • 1 red onion
  • 2 firm, just-ripe avocados
  • 2 jalapeños

Accent:

  • Dill, to taste
  • Sea salt

Sea salt is a nice finishing touch. For the avocados, choose fruit that is just ripe but still firm enough to dice; very soft avocado will fall apart when you mix it.

Ceviche step 2

If the salmon still has its skin, loosen one corner with a narrow-bladed knife.

Ceviche step 3

Hold that corner and work the blade along the skin, keeping the fish on the cutting board. Ideally it will come away in one piece.

Ceviche step 4

Cut the skinned salmon into strips.

Ceviche step 5

Cut those into narrower strips, about ¼ inch thick.

Ceviche step 6

Cut across them to make roughly ¼-inch cubes. Small pieces firm up more quickly in the citrus; larger pieces keep a softer center. Neither texture tells you whether raw fish is safe to eat.

Ceviche step 7

Here is the salmon, diced. I usually trim away the darker flesh near the center because its flavor is stronger, but that is a matter of taste.

Ceviche step 8

Cut the limes. I used five here. Lemon works too, but I particularly like the way lime cuts through the richness of the salmon.

Ceviche step 9

Squeeze enough juice over the fish to cover it.

Ceviche step 10

Add 1 teaspoon of sea salt, cover, and refrigerate for 30 minutes.

Ceviche step 11

The flesh will soon turn more opaque as its proteins denature. More time changes the texture further, but an opaque surface is not evidence that the fish has been cooked or made safe.

Ceviche step 12

Dice the onion. We have covered this in earlier posts, and I am beginning to think I have photographed enough onions for a lifetime.

Ceviche step 13

Set the avocado on a cutting board and cut around it lengthwise, guiding the knife around the pit.

Ceviche step 14

Twist the halves apart.

Ceviche step 15

Remove the pit carefully with a spoon.

Ceviche step 16

Scoop the flesh from the skin with a spoon. Save the empty skins if you would like to use them as serving bowls.

Ceviche step 17

Place each avocado half cut-side down and make lengthwise slices.

Ceviche step 18

Cut across those slices to dice the avocado.

Ceviche step 19

Squeeze a little more lime over it to slow browning.

Ceviche step 20

You should have about 2–3 cups of diced avocado.

Ceviche step 21

Cut the tomatoes in half.

Ceviche step 22

Use a paring knife to remove the watery seed sections.

Ceviche step 23

Save them for another use, or discard them.

Ceviche step 24

Then dice the tomatoes.

Ceviche step 25

Now we have our salmon, onion, tomato, and avocado ready to go.

Ceviche step 26

Lift the salmon from its curing liquid with a slotted spoon and combine it with the vegetables. Discard the used juice; we do not need that strongly fishy liquid in the finished dish.

Ceviche step 27

Fold everything together gently. Adjust the balance as you go. I held back a little onion rather than letting it take over.

Ceviche step 28

Now for the heat. Remove the seeds from the jalapeños and dice the peppers finely.

Ceviche step 29

Add them to the mixture.

Ceviche step 30

Chop the dill and add it to taste. Cover and refrigerate for another 2–3 hours, then serve chilled.

Serve it on a plate, in the avocado skins, or in a bowl. My favorite is a martini glass. Yes, after all my complaining about oversized martini glasses, I have finally found an excellent use for them. Chill a 12-ounce glass in the freezer first.

Ceviche step 31

I put a little watercress dressed with sesame-ginger dressing in the bottom. You can skip that if you prefer.

Ceviche step 32

Spoon the ceviche on top.

Ceviche step 33

Cut a thin slice of lime and make a small slit in one side.

Ceviche step 34

Garnish the glass, find somewhere cool to sit, and enjoy. Yumm!