Ingredients
4 thin lemon slices (1/4 inch thick)
3 Pickled Green Tomatoes, quartered, plus 5 tablespoons brine
Coarse salt
8 large shrimp, peeled and deveined
2 tablespoons extra-virgin olive oil
4 radishes, trimmed and very thinly sliced (1/4 cup)
1/2 celery stalk, very thinly sliced (1/4 cup)
1 teaspoon minced garlic
1/3 cup mayonnaise
4 thin slices dark rye bread, toasted
Flaky sea salt, such as Maldon, for serving
Dill sprigs, for serving (optional)
Preparation
Combine 2 cups water, lemon slices, 2 tablespoons brine, and 2 teaspoons coarse salt in a medium pot; bring to a boil. Add shrimp and return to a boil, then immediately remove from heat. Let stand until shrimp are opaque throughout, about 1 minute. Remove shrimp with a slotted spoon; let cool completely.
Halve shrimp lengthwise and toss with pickles, remaining 3 tablespoons brine, oil, radishes, and celery in a large bowl.
Stir garlic into mayonnaise, then spread on bread slices. Top with shrimp salad. Sprinkle with flaky salt and dill; serve.