If you don’t have a clay pot, cook this dish in a wok or stock pot and roast the prawns covered with a lid.

Most fishmongers will set aside shrimp shells for you with a little notice. If you can’t get them, use the shells from the recipe and replace half the water in the stock with clam broth.

Melt the butter in a large, heavy-based saucepan over medium heat until foaming. Add the shallot and garlic. Cook, stirring, for 2 minutes or until softened. Step 2 Add the tomatoes, chicken stock, ...