Make the Fish Stock
Separate the shells and heads of the cleaned tiger pawns.
There are many ways to make a wonderful fish stock. My way is a simplification of a friend’s recipe using a whole lobster. For reasons of budget and a lack of lobsters here in the Mediterranean, I used the shells of the large prawns/shrimp to make the stock. If you’d rather present the dish with the shells still on the prawns, or prefer not to use them altogether, ask your fishmonger for some fresh good quality fish stock.
Remove the shells from the prawns, clean them, and re-refrigerate the prawns.
Throw the shells into a hot pan with a glug of olive oil and a small knob of butter.
Fry the shells on a medium-high heat until they start to take on some colour. Don’t be shy.
When they’re browned, add 1 litre of water and make sure to deglaze the pan by scraping off all the tasty bits on the bottom.
Leave to simmer on a low heat for 1 hour, skimming the surface every so often to remove the impurities.
Strain and set aside to cool.
Passing the fish through the food mill requires patience- but it’s worth it!