1: To prepare the bream, make deep parallel slashes through the skin on both sides of the fish, at about 3cm intervals. Put the lemongrass, spring onion, ginger and kaffir lime leaves into the fish cavity.

2: Tear off a piece of baking paper about 15cm longer than the fish and lay it on your work surface. Place a few lemon slices down the middle of the paper and lay the fish on top. Season both sides of the fish with salt and pepper and drizzle with the oil. Place the remaining lemon slices on top.

3: Wrap up the fish securely in the baking paper and tie the ends tightly with kitchen string. A well-sealed package will help the fish steam better. Now wrap the fish in 2 or 3 layers of newspaper and tie again with string.

4: Shortly before cooking, immerse the whole package in a bowl of cold water for 4–5 minutes, no longer. Now place the fish parcel on the hottest part of your barbecue and cook for 15–20 minutes, turning it over after 8–10 minutes. The newspaper will burn but the fish will steam to perfection inside.

5: While the fish is cooking, put the ingredients for the coriander and lime butter into a small bowl and mix until evenly combined. Season with salt and pepper.

6: Once the fish is cooked, remove the parcel from the barbecue and open it up. Spread the butter over the fish and let it melt. Serve with lime wedges for squeezing over.