To make vegan tosazu

1. Combine vinegar and shoyu and bring to a simmer.

2. Add the dried shitake and let cool down at room temperature.

3. Strain through a fine mesh strainer.

4. Keep in chiller until ready to use.

To make Amazu

1. Combine shiragiku or rice vinegar, sugar, salt and bring to a simmer and dissolve all the ingredients.

2. Add the kombu to the vinegar mixture and remove from heat and allow to cool to room temperature.

3. Strain through a chinois (a conical sieve with an extremely fine mesh).

4. Keep in chiller until ready to use.

To make Nanbanzu

1. Combine all ingredients thoroughly.

To Assemble

1. Slice the zucchini with a Japanese mandolin 1/5 mm thin.

2. Bring water to a boil, blanch the zucchini for 5 seconds and immediately remove and place it in ice water to cool it off. Dry zucchini and set aside.

3. Trim the seeds away from each slice of zucchini so that you are only left with the flesh and skin.

4. Layer the zucchini starting from the top to bottom.

5. Using an 11 cm ring cutter, trim off the excess zucchini. Use a cake spatula and transfer to you plate.

6. Cover the zucchini and plate with the nanbanzu.

7. Garnish with pearl onion rings, crispy shallots, red jalapeno, micro shisho and maldon sea salt.

Chef Akira Back

Korean-American Michelin-starred chef and founder of Akira Back chain of restaurants