3 tablespoons plus 1 teaspoon kosher salt
1 lemon cut into quarters
4 pounds large shrimp in the shell (16 to 20 shrimp per pound)
2 cups mayonnaise
1 teaspoon Dijon mustard
2 tablespoons white wine or white wine vinegar
1 teaspoon freshly ground black pepper
6 tablespoons minced fresh dill
1 cup minced yellow onion (1 onion)
3 cups minced celery (6 stalks)
Bring 5 quarts of water, 3 tablespoons salt, and the lemon to a boil in a large saucepan. Add half the shrimp and reduce the heat to medium. Cook uncovered for only 3 minutes or until the shrimp are barely cooked through. Remove with a slotted spoon to a bowl of cold water. Bring the water back to a boil and repeat with the remaining shrimp. Let cook, than peel and devein the shrimp.
In a separate bowl, whisk together the mayonnaise, mustard, wine or Winegar, 1 teaspoon salt, pepper, and dill. Combine with the peeled shrimp. Add the yellow onion and celery and check the seasonings. Serve or cover and refrigerate for a few hours.