To make the dressing,place all the dressing ingredients in a bowl and mix until fully incorporated. Set aside. Divide the rice among 4 bowls.
Place the chopped tuna,green onions,shiso,ginger,daikon and dressing in a stainless-steel bowl and mix to combine.
Divide the tuna mixture among the 4 bowls. Make a little well in each tuna mound and place a raw egg yolk in each one. Sprinkle with sesame seeds and serve. (Each person can then mix the tuna and yolk through the rice and eat with chopsticks or a spoon.)
HOT TIPS
Raw tuna served this way is a fantastic meal and so good for you. Any super-fresh fish you like can be substituted.
The egg yolk can be omitted from the tuna dish,but the end result won't be quite so lush.
If you can't find shiso,use Thai basil or mint or a combination of both.
You can use any chilli paste instead of the Korean bean paste,or just leave it out and increase the other ingredients.