01 -
1 small white onion, finely minced (½ cup).
02 -
1½ pounds large shrimp, shell on.
03 -
2 teaspoons kosher salt.
04 -
1 pound unsalted butter, room temperature.
05 -
2 teaspoons lemon zest.
06 -
2 tablespoons lemon juice.
07 -
1 tablespoon Worcestershire sauce.
08 -
¼ cup fresh parsley, finely chopped.
09 -
¼ cup fresh dill, finely chopped.
10 -
½ teaspoon black pepper.
11 -
½ teaspoon celery seed.