For this recipe to work, the fish has to be as fresh as possible and really well chilled. I add a little whisked egg white to the mixture, this helps to bind the fish together well, but you can omit if you want.
Chop the salmon and prawns really finely, then re-chill.
Mix the rest of the ingredients and season well with salt and pepper.
Add a few breadcrumbs to the salmon and mix really mix well.
Mould into 4 even patties, flatten and then re chill.