Once you’ve got the hang of cooking sushi rice and your tamago nigiri and futomaki look fantastic, it’s time to move onto something more challenging. Sabazushi sees cured mackerel and rice rolled together, with a strip of soaked shiraita-konbu (shaved kombu seaweed) on top. This sushi requires a bit of planning in advance – the mackerel needs to cure in sugar, then salt, and then needs marinating in rice wine vinegar for an hour. But the end result is beautiful – especially if you include the tobiko and myoga (Japanese ginger) as a garnish.