Prepared sushi rice
Tuna – cut into narrow strips
Prepare the sushi rice. Slice the cucumber into narrow strips.
To make the rolls, lay sheet of Nori (shiny side down) on the bamboo rolling mat. Moisten your hands with water, spread sushi rice on the nori and cover the edges, leaving the tops 2 ½ cm uncovered. Dab a very small amount of wasabi on rice in a line along the centre of the rice. Lay thin tuna strips and half the cucumber onto the wasabi.
Holding the filling in place with your fingers, lift the front of the bamboo mat closest to you and roll up. Just before reaching the end of the sheet, wet the exposed end with a little water. Press the mat around the roll to shape it, remove the mat and with a sharp knife cut the roll into six slices