If you like eating tuna sushi but don't fancy going through the effort to roll your own at home, here's an easy fix for you.

You'll also need sushi-grade tuna along with ingredients for spicy mayo, which include Kewpie mayonnaise, crushed red pepper ...

Add the hot sauce and mayonnaise and mix well ... along as it makes it much easier to slice the sushi neatly. Remove the cling film from the tuna roll after slicing. Serve with pickled ginger ...

Spoiler: It's not just for decoration. Two experts explain what that plastic grass is doing in your takeout sushi.

In a classic tuna mayo, there are bits of drained canned tuna, mayonnaise, and a seasoning of salt and black pepper. Some people might like to add a little onion and celery to the tuna mayo ...