Brown butter, toasted pine nuts, fresh chilies sliced thin, garlic sliced paper thin, tarragon, salt/fresh ground pepper of course... maybe some fortified wine, like vermouth, reduced in there somewhere. Finish with minced parsley and lemon juice just before serving. And of course some parmesan cheese grated over the top.
Add a little dried whole milk powder to the butter before it browns. <--- key maneuver