Chilli shrimp requires only 4 basic ingredients - shrimp (prawns), butter, garlic and chillies. In this example I also used a bed of fettuccine.
The dilemma with this recipe is do you shell the shrimp before cooking or not as so much of the flavour is in the shell and head of the shrimp. I think the best compromise is to shell the shrimp but toss in the heads when you cook them, then discard the heads before serving. I found that with the shell on, although the shrimp flavour was good I was peeling off the the chilli and garlic along with the shell.