SHRIMP SANDWICHES WITH TARRAGON-CAPER MAYONNAISE

Shrimp Sandwiches with Tarragon-Caper Mayonnaise image

Provided by Molly Stevens

Yield Makes 6 servings

Number Of Ingredients 13

1/3 cup mayonnaise
2 tablespoons drained capers, finely chopped
1 1/2 tablespoons grated sweet onion (such as Vidalia or Maui)
1 tablespoon chopped fresh tarragon
1/4 teaspoon celery seeds
1/4 teaspoon (or more) hot pepper sauce
1/2 cup finely chopped celery heart with leaves
2 tablespoons (1/4 stick) butter, room temperature
12 small (3-inch round) soft sandwich rolls or 6 hot dog buns
1 pound cooked peeled deveined large shrimp, each cut horizontally in half
Tomato slices (optional)
Avocado slices (optional)
Thinly sliced butter lettuce (optional)

Steps:

Mix first 5 ingredients and 1/4 teaspoon hot sauce in medium bowl. Mix in celery. Season with salt and pepper and more hot sauce, if desired. DO AHEAD Mayonnaise can be made 6 hours ahead. Cover; chill.
Lightly butter cut sides of rolls. Heat griddle or large nonstick skillet over medium heat. Add rolls, buttered side down, to griddle and cook until golden, 1 to 2 minutes. Spread mayonnaise over bottom of each bun. Top with shrimp, tomato, avocado, and lettuce, if desired. Cover with top buns. Transfer to plates.