01 -
A small onion, diced up (about half a cup).
02 -
1.5 pounds of shrimp, fresh and still in shells.
03 -
A couple spoons of sea salt, with extra for boiling water.
04 -
1 pound of creamy butter.
05 -
Two lemons, use the zest and squeeze out the juice.
06 -
1 spoon of Worcestershire sauce.
07 -
A generous amount of finely chopped parsley.
08 -
A good handful of freshly chopped dill.
09 -
A decent pinch of black pepper.
10 -
A little bit of celery seeds.