Shrimp Sandwiches with Tarragon-Caper Mayonnaise

Ingredients

• 1 pound cooked peeled deveined large shrimp
• 2 tablespoons butter
• 12 small (3-inch round) soft sandwich rolls or 6 hot dog buns
• 1 ½ tablespoons sweet onion (such as Vidalia or Maui)
• butter lettuce
• Avocado slices
• Tomato slices
• + 6 more ingredients
• • ¼ teaspoon celery seeds
  • ¼ teaspoon hot pepper sauce
  • ½ cup celery heart with leaves
  • ¹/₃ cup mayonnaise
  • 2 tablespoons capers
  • 1 tablespoon fresh tarragon

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. Ad...

View full recipe at Epicurious