Why It Works
- Starting the shrimp in cold water spiked with citrus juice gives them great flavor and the most tender texture.
- Sprinkling the shrimp with baking soda before cooking transforms their texture so that they're supremely juicy with a wonderful snappy bite.
- A cold-start poach where the cooking water is only brought up to 170°F (77°C) delivers perfectly cooked shrimp.
There's a razor-thin line between cooked shrimp and overcooked shrimp. Finding that sweet spot is the first priority in any shrimp-based recipe, but when you're serving the shrimp cold—like in this simple salad of shrimp, corn, and tomatillos—it's even more important. Hot, juicy shrimp in a buttery sauce taste great even if they're a little bit rubbery, but rubbery cold shrimp are inedibly unpleasant.
So what's the secret to perfectly poached shrimp? The classic method of poaching shrimp involves plunging raw shrimp into a pot of boiling water or court bouillon, a quick stock made with water, aromatics, and citrus juice or wine. My first step was to determine whether that court bouillon is really all it's cracked up to be.
By tasting shrimp side by side after they'd been cooked in various flavored liquids, I found that if you eat the shrimp plain, some of the flavors of the court bouillon come through—but as soon as you dress those shrimp with other flavorful ingredients in a salad, the only ingredient in the court bouillon that makes a real difference is the citrus juice. So I decided to poach my shrimp in a plain mixture of water and lime juice instead of bothering with all the other aromatics.
Next question: heat. The high heat of a boiling pot of bouillon makes it very easy to accidentally overcook the shrimp. To avoid that, I find that it's best to go against tradition and start the shrimp off in cold water, then gradually bring the water up to temperature on the stovetop. Not only does this slow cooking give you a larger window of time between perfectly cooked and overcooked, it also produces a more tender texture throughout.
The toughness of shrimp proteins is directly related to the temperature to which they're heated. At a boiling-hot 212°F (100°C), the outsides of your shrimp are going to get tough no matter what. But by using the cold water–start method, you can restrict that upper bound. I found that by heating the water to 170°F and no higher, I ended up with shrimp that were cooked perfectly through from edge to edge. Prior to cooking, letting them rest in a quick brine or a combination of salt and baking soda (a trick I use whenever I grill or sauté shrimp) improved their texture, giving me shrimp with a nice pop and snap.
Finally, rinsing the shrimp under cold running water and spinning them dry in a salad spinner halted the cooking and quickly chilled them to get them ready for my salad.
Once I had my shrimp where I wanted them, the rest was easy. I added fresh corn kernels (which I had also boiled, chilled, and spun dry), along with some thinly sliced tomatillos (I love their fresh, acidic crunch), red bell peppers, scallions, serrano chiles, and chopped cilantro. I tossed everything together with a very simple dressing of lime juice and extra-virgin olive oil. I didn't want anything to distract from the sweet, clean flavors of the shrimp and corn.
It's the perfect summer salad, which shows that if you want to beat the heat, you gotta start cold.
July 2015
Recipe Details
Quick and Easy Shrimp, Corn, and Tomatillo Salad Recipe
Ingredients
- 1 pound raw medium shrimp, shelled and deveined
- 1 tablespoon plus 1 teaspoon kosher salt, divided, plus more for seasoning
- 1/4 teaspoon baking soda
- 3 cups fresh corn kernels, cut from about 3 ears of corn
- 2 tablespoons fresh juice from 3 to 4 limes, divided
- 1/2 pound fresh tomatillos, husks removed, split in half and cut into 1/4-inch slices
- 1 serrano pepper, thinly sliced
- 1 red bell pepper, diced (about 3/4 cup)
- 3 scallions, white and light green parts only, thinly sliced on a bias
- 1/4 cup roughly chopped fresh cilantro leaves and tender stems
- 3 tablespoons extra-virgin olive oil
- Freshly ground black pepper
Directions
Combine shrimp, 1 teaspoon kosher salt, and baking soda in a medium bowl and toss to coat. Set aside in refrigerator while you cook the corn.
Bring a medium pot of well-salted water to a boil. Add corn and cook until tender-crisp, about 3 minutes. Drain carefully, rinse under cold running water, and spin dry in a salad spinner.
Add shrimp to now-empty pot and cover with 3 cups cold water. Add remaining 1 tablespoon salt along with 1 tablespoon lime juice. Place over medium-high heat and heat until water is barely steaming and registers 170°F (77°C) on an instant-read thermometer; adjust heat to maintain this temperature for remainder of cooking. Cook shrimp until pink and firm to the touch, about 7 minutes total. Drain carefully, rinse under cold running water, and spin dry in salad spinner.
Combine cooked shrimp and corn with tomatillos, serrano pepper, red bell pepper, scallions, cilantro, olive oil, and remaining lime juice. Toss to coat, season to taste with salt and pepper, and serve.
Special Equipment
Salad spinner, instant-read thermometer