If you're feeling a bit hungrier than usual, you may want to make your spring rolls heartier by adding some sushi rice to the recipe. Start by making your seasoned sushi rice with rice vinegar ...

Spread the strips of cucumber onto the salmon and add a sprinkling of spring onion. Carefully roll the sushi up into a sausage shape and slice it into 3cm/1in long pieces, trimming the ends.

Today: Marc prepares bentos with cooking expert Yanagihara Naoyuki, a chef of Japanese cuisine. Together, the pair make colorful bentos featuring a soba roll and spring rolls.