Salmon
I believe that the salmon needs to be fresh, not previously frozen. you will
see other views expressed on this. Some believe its better to freeze raw fish
first to kill any parasites..
Preparation
Buy Salmon fillet, not the "horseshoe" shaped steaks. You need to make sure
the fillet is about 3/4" - 1" (20-25mm) thick and 2 inches in width to make
nigiris.
You need a very sharp knife. Carefully slice the salmon width ways
in thin slices for the nigiris. Cut into
1/16" (2mm) thick slices.
You can also add salmon to California rolls in long strips or you can just
have salmon rolls with avocado and spring onion.