SushiSushi: the home of Japanese flavours

The website has come a long way from where it was in 2007 and now stocks over 1,000 products, almost all of which are directly imported from Japan. However, while SushiSushi has always sold directly to the public, it now also works with many of the best restaurants in the UK. ‘When we started, the market in Britain was for pseudo-Japanese food,’ explains Stu. ‘I wanted to sell higher-end, purer products but the only way to do that was to get a more premium client base. I built relationships with chefs that really wanted to push the boundaries and we created this movement of using Japanese ingredients in fine dining.’ Currently, SushiSushi supplies four of the seven three-Michelin-starred restaurants in the UK, eleven of the seventeen two-Michelin-starred restaurants and an impressive number of one-star restaurants too. Stu’s knowledge of niche Japanese products means that he’s also able to advise chefs on certain products (‘We’ve also got that consultancy edge to us’) if they’re looking to add certain flavour profiles to a dish.

Supplying to restaurants of this level means it’s essential that every product offered by SushiSushi is top quality, which is why a huge amount of time and effort goes into sourcing the finest ingredients Japan has to offer. Stu usually travels over to Japan three or four times a year to seek out new products and meet the producers in person. While there, he does everything from attending trade shows in Tokyo with a translator in tow, to working with the Japanese government to travel to different regions of Japan. ‘The regional visits are always interesting because that’s where you find all the hyper-specialist stuff,’ says Stu. ‘The last place I went to, for example, was the Hiroshima district where they specialise in oysters and furikake.’

Given the amount of work that goes into sourcing the ingredients sold by SushiSushi, it’s no surprise to see how much of a success the company has become. Having started the business as little more than a passion project, Stu has carved a real niche for himself in the industry and is now known as the go-to man for Japanese ingredients in the UK. The same products he supplies world-class chefs with can be bought by home cooks eager to incorporate them into their own dishes – a rare opportunity indeed.

Below are some of the most popular product categories on SushiSushi’s website which Stu believes offers a perfect starting point for people wanting to really get to grips with the ingredients and flavours of Japanese cuisine. To check out the full range, however head to SushiSushi's website and begin your Japanese cooking journey today!

‘Ponzu is very popular within the industry at the moment. We’ve got one product in particular called Lycopins Tomato Ponzu, which around twenty Michelin-starred restaurants use. They often don’t mention it on the menu because it’s a bit of a secret but even some French restaurants add it to sauces because it tastes so good. I found it on one of my regional tours; there were these two ladies sitting with the product in the corner of this village hall on an island. I thought the bottle looked quite cool so I tried it, and the flavour blew my mind. They use a tomato vinegar to make it, made from tomatoes grown on this specially developed plantation which have been specifically bred to contain double the amount of lycopene (the molecule that makes tomatoes red) than normal. This is blended with local soy sauce, 24% fresh yuzu juice and dashi to create a product with fantastic balance and a lot of umami depth. Apart from the Lycopins Tomato Ponzu, we’ve got lots more really interesting ponzus too. Another is Shibanuma yuzu and katsuobushi ponzu which is made from fresh yuzu local to the Ibaraki prefecture in Japan, and it has the perfect balance of salty, sweet and sour. It has that perfect, classic ponzu taste.’

Browse through SushiSushi's range of ponzus here.

‘When people think of dashi they tend to only associate it with that katsuobushi [bonito flake] flavour but it can actually be a stock of any kind – dashi literally translates to ‘stock’ in Japanese. I stumbled across one in particular on the northern island of Hokkaido at the very end of a trip. It’s a scallop shiro dashi, which means it’s a liquid stock that’s been concentrated fifteen times. If you made a stock purely out of dried scallops, which would be hugely expensive, you would get something similar to this; the difference is that this dashi has been balanced out with seasonings like mirin and kombu. It’s basically the essence of scallop flavour in liquid form and chefs tend to use it as a seasoning to enhance the flavour of fresh scallops. I can’t tell you which, but this is currently being used at a three-starred restaurant in London. We also stock a range of liquid dashi concentrates, as well as a selection of dashi vinegars and even a dashi soy sauce. The concentrates are great for adding real depth of flavour to a dish and because of how they’re produced in Japan, they can’t be replicated, so you’re getting a really unique flavour profile.’

Browse through SushiSushi's range of dashi here.

‘Koji is at the core of Japanese food and has been around for hundreds of years but most western chefs didn’t think about using it until recently. A lot of chefs in the UK got inspired by reading Noma’s Guide to Fermentation and started growing their own koji from scratch as a result, but in reality no one in Japan, bar maybe a couple of restaurants and sake makers, are getting in koji spores and doing it themselves. Kome-koji is a great product for people who want to get into using it properly. It's uncooked Japanese rice that's been impregnated with Koji spores, ready to use and in a really stable format. All you have to do is add water and salt, vac-pack it, sous vide it for twenty four hours and it turns into shio koji (a porridge-like substance used as a cure or marinade for meat, fish or even veg). You can also simply use it as a starter for making miso.’

Browse through SushiSushi's range of koji along with a bespoke collection of other products specifically put together for Great British Chefs here.