Japanese-style bento box
This Asian-inspired lunchbox with mackerel sushi, edamame beans and fresh fruit will keep you going all afternoon
Mix the vinegar with the sugar and set aside. Tip the rice and kelp into a small non-stick pan with 300ml water. Cover and cook over a low heat for 20 mins until tender. Remove the lid and cook for 3-5 mins more, so the excess water evaporates. Be careful not to let it catch on the base of the pan. Stir in the vinegar mixture, then carefully spread out on a plate to cool at room temperature.
When the rice is cool, shape into an oblong, then divide into 12 equal portions. With wet hands, take a portion of rice, put it in the palm of your hand and squeeze together quite tightly so that it forms a little cylinder that sticks together. Repeat with the remaining rice. Top each rice cylinder with a slice of avocado, then wrap with a strip of smoked salmon. Scatter with sesame seeds, then serve with the wasabi, sushi ginger and tamari.