Take a nori sheet, and break it in half. If it doesn’t break easily, you can toast it for a few seconds or use scissors to cut it. Place one half on the mat, with the shiny side facing down. In this example I actually used the entire nori sheet to get a larger roll, although it’s more common to use half.
2. Grab a handful of prepared sushi rice, and spread it gently over the nori – about 1 cm high. There’s no need to press the rice down onto the nori, only spread it to cover the sheet. Cover the entire sheet if you are using half a nori, and the about 80% of it if you are using a full nori.