Place water and rice in a large saucepan over medium high heat, no lid.

As soon as it comes to a boil (see video), lower heat to medium low, place lid on and leave for 18 - 20 minutes or until water is completely absorbed). DO NOT stir, DO NOT remove lid!

Remove from stove with lid still on and leave undisturbed for 15 minutes.

Mix Sushi Seasoning ingredients until sugar dissolves.

Spread rice out into large pan (23 x 33cm / 9 x 13"), drizzle half Seasoning all over.

Using a rice paddle OR rubber spatula, cut through the rice and gently fold the rice over (see video!) to mix the Seasoning through.

After 1 minute of mixing, drizzle remaining Seasoning then cut/fold for 1 minute. Will look wet but will absorb in next step.

Leave rice to cool to warm or room temp (if you can stick it in front of a fan, that's even better!) - about 20 minutes.

Dressing: Mix ingredients in a bowl.

Divide rice between bowls. Top with radish, carrot, edamame and avocado.

Place tuna in Dressing and toss (no need to marinate), then immediately transfer onto rice.

Sprinkle cucumber over the top (mainly on tuna), then green onion and sesame seeds.

Drizzle over remaining Dressing then serve!