Allow a 200g/7oz fillet or steak per person. If you can’t find halibut, turbot is a suitable substitute. Small halibut, called chicken halibut, weigh up to 2kg/4½lb and can be bought whole.

Spoon about one-eighth of the chutney on the bottom half, and spread it out to a rectangle about the size of a halibut fillet. Set one fillet on top of the chutney, and cover with another eighth ...

To assemble the summer rolls, work with one rice paper wrapper at a time ... Place on a cutting board, blot dry, and place a few pieces of halibut in a horizontal line just below the center ...