Wasabi for horseradish

Back when sushi seemed exotic, wasabi was described as Japanese horseradish because both plants have a strong, nasal-clearing, mustard lavour that pairs well with oily ish. Wasabi is best served with sushi, but can be used instead of horseradish to add a kick to mash, mayo or dressings. Fresh wasabi is rare in the UK but you can add the powder (which you mix with water), or pre-mixed tubes, straight to foods.