Step 1

This recipe can also be prepared with large shrimp (26/30); the cooking time will be 1 to 2 minutes less. The shrimp can be cooked up to 24 hours in advance, but hold off on dressing the salad until ready to serve. The recipe can be easily doubled; cook the shrimp in a 7-quart Dutch oven and increase the cooking time to 12 to 14 minutes. Serve the salad on a bed of greens or on a buttered and grilled bun.

Step 2

Combine shrimp, 1/4 cup lemon juice, reserved lemon halves, parsley sprigs, tarragon sprigs, whole peppercorns, sugar, and 1 teaspoon salt with 2 cups cold water in medium saucepan. Place saucepan over medium heat and cook shrimp, stirring several times, until pink, firm to touch, and centers are no longer translucent, 8 to 10 minutes (water should be just bubbling around edge of pan and register 165 degrees on instant-read thermometer). Remove pan from heat, cover, and let shrimp sit in broth for 2 minutes.

Step 3

Meanwhile, fill medium bowl with ice water. Drain shrimp into colander, discard lemon halves, herbs, and spices. Immediately transfer shrimp to ice water to stop cooking and chill thoroughly, about 3 minutes. Remove shrimp from ice water and pat dry with paper towels.

Step 4

Whisk together mayonnaise, shallot, celery, remaining tablespoon lemon juice, minced parsley, and minced tarragon in medium bowl. Cut shrimp in half lengthwise and then each half into thirds; add shrimp to mayonnaise mixture and toss to combine. Adjust seasoning with salt and pepper and serve.