- 2 tsp sesame seeds
- 200 gm fillet of sashimi-grade bonito, skin on
- 1½ tbsp Healthy Boy soy sauce (see note)
- 3 radishes, sliced into paper-thin rounds
- 1 sheet of toasted laverbread or nori
- 100 gm avocado flesh (about 1 avocado)
- 2 tsp lemon juice
- 2 tbsp white balsamic vinegar
- 2 tbsp light olive oil
- 1 tbsp Healthy Boy thin soy sauce
- 1 tbsp sweet ginger vinegar (see note)
- 1Gently dry-toast the sesame seeds in a frying pan over medium heat pan until lightly golden (1-2 minutes), then crush with a mortar and pestle to just break up the seeds.
- 2For avocado purée, blend ingredients and a pinch of salt in a tall cup with a stick blender until smooth. Push mixture through a fine sieve with the back of a spoon and taste to check seasoning, adding more lemon and salt if required.
- 3For ginger vinaigrette, whisk ingredients until well combined, season to taste and set aside.
- 4To remove the bloodline from the fish, slice down the middle of the fillet and remove the bones and blood-red flesh, then roll bonito in the soy sauce, place on a metal tray and blowtorch the skin lightly until blistered. Refrigerate immediately until chilled (15-20 minutes).
- 5Slice the fillet against the grain into 5mm-thick slices. Place on a tray, season lightly with salt and drizzle with some of the ginger vinaigrette. Arrange on a plate and drizzle with more vinaigrette. Dot avocado purée on the fish slices. Dress radish slices with vinaigrette, season with salt and arrange on the plate. Brush the laverbread or nori gently over a naked flame just to crisp slightly (4-6 seconds), then break it into rough pieces over the plate. Scatter with ½ tsp toasted sesame seeds and serve.
Note Healthy Boy soy sauce is available from Thai grocers or select Asian supermarkets. Yamato brand sweet ginger vinegar is available from Simon Johnson food stores.