Yudofu (Japanese Hot Tofu)

Strange Weather in Tokyo

I first heard of yudofu while reading a book by Hiromi Kawakami called “Strange Weather in Tokyo”. The main characters are an elderly, retired professor and his former student (now in her late-30s). These two lonely people meet by chance and, over time, they develop a close friendship. Tsukiko and “Sensei” tend to spend a lot of time in small neighbourhood bars drinking and eating. It is here that yudofu comes up over and over (maybe it is one of the author’s favourite snacks?). They seem to enjoy it so often that I wanted to try it myself, as if i was sitting on the barstool next to them and listening in to their conversations.

Japanese Cooking

I have been a professional chef for most of my life. During that time I have had the opportunity to see some elements of Japanese-fusion cooking while working in fine-dining kitchens. And, of course, I witnessed the late 90s/early 2000s sushi boom in North America. But, apart from that, this cuisine always seemed kind of mysterious to me. I was learning to cook at a time when big, bold flavours were en vogue and high-intensity was paramount. So the more subtle and straightforward flavours of Japanese cuisine were much less familiar.

My Japanese Kitchen

During one period in my own restaurant, through a mix of circumstances (many working-holiday visas and increased eligibility for permanent residency if you were a cook), I ended up hiring a kitchen brigade of mostly Japanese cooks. At the same time, the front-of-house ended up with a large number of temporary Japanese support staff, running food and clearing tables. We had so many workers from Japan that, on more than one occasion, I had to ask them to please speak English (instead of Japanese) so that I could keep up with what was going on in my own kitchen! haha

The most inexperienced cook I have ever hired worked so hard that she quickly became the best and most reliable cook I have had through the kitchen. As my second in command, Ayuko brought weird and wonderful specials to the night menu: ethereal jelly dishes, made to order fresh spring rolls: so popular that it may have been the first time I ever heard her swear in English (“oh fuck..more fucking spring rolls?!? fuck”) Happy days!

dashi jelly with veggies
f#@king springrolls! >: (

As a chef, these were some of the most happy, relaxed and productive days I have ever spent running a kitchen. The food was cooked with pride and precision. The plating was clean and beautiful. Everyone worked hard together as a supportive team to produce the best plates possible everyday. And all with no pushing needed from me. What a dream! On top of this, the staff meals the cooks produced were outstanding. It was here that I first tried things like ochazuke (rice with green tea) or really premium grilled onigiri (rice balls). It opened my eyes to how something subtle but still delicious could be made with just a few fresh ingredients.

Where to find good Japanese recipes in English

Considering how popular Japanese cuisine has become, it is surprisingly difficult to find good sources for recipes (for English speakers anyways). So, I was happy to discover the website Just One Cookbook. This is a wonderfully organized site with picture-heavy directions (just like mine) and logical, step-by-step recipes for hundreds of Japanese dishes.

There are not many cooking sites that I would personally recommend but, this one is truly outstanding. The recipe I am posting here is adapted from their website. The sauce is almost identical. All credit to Just One Cookbook. I am posting my recipe here because I eat it so often and want to make it part of my own personal recipe collection. Go check out their website. There is so much to learn and so many good things to eat!

Yudofu recipe

This is a very straightforward recipe, the one I make all the time. It is very easy and quick and delicious.

Ingredients:

  • 1 block (around 400gr) silken tofu
  • 3-4 small squares of kombu
  • 1 teaspoon diamond kosher salt
  • 2 tablespoons sake
  • 1 or 2 green onions
  • 500ml water (or enough to cover tofu in pot)
ingredients for yudofu
Raw ingredients: kombu, salt, sake, silken tofu, green onion

I like the texture of silken tofu and, if handled carefully while preparing, it won’t fall apart. Once it is cooked in the broth it firms up enough so that I can easily pick it up with chopsticks. If you can’t find silken tofu or if you like a firmer tofu, you can use that instead. Experiment with different brands and find one you like. I use this organic Pulmuone tofu which I can get easily at the local Korean grocery. They also make a “sprouted tofu” which is slightly sweeter with more nutrients and protein. It is worth trying too if you can find it.

Leave out the green onion or substitute it with another herb if you like. I have tried flat-leaf parsley and minari (korean watercress) which are both very good in this recipe. I have also tried mitsuba (Japanese parsley) which was delicious but hard to find and expensive.

Kombu is dried kelp. You can find it in little squares or big sheets in any Asian grocery store.

Process:

To make the broth, soak the kombu in around 500ml of fresh cold water for about 2 hours. If you are short on time, you can also make this by dropping the kombu into barely simmering water for 15 minutes or so.

soaking kombu in water
I have several Korean stoneware bowls at home so that it what i use for this dish. You can put them directly on the stovetop and they hold heat very well. If you don’t have a stoneware pot, any normal pot will work too.

After the cold or warm steeping time, remove the kombu…

removing kombu after steeping

Chop green onions

chopped green onion divided into roots, whites and greens
Roots in the compost bin, white centre will go in at the start, green tops at the end

Green onions, sake, salt and tofu. I like my tofu in bite sized pieces that I can pick up with chopsticks but you can cut it any way you like. You can even cook the whole block of tofu and scoop it out with a spoon later.

yudofu prepared ingredients including diced tofu

Heat the broth until just boiling then add 1 teaspoon kosher salt

adding salt to boiling water

Add 2 tablespoons sake

adding sake to broth

Add tofu and green onion white parts. Turn the heat down to medium low and let it go until tofu is warmed through. With the tofu I am using, it usually swells up a little and starts to float to the top.

adding tofu and green onion white parts

While you are warming your tofu, you can make the sauce. This can also be made ahead of time and stored airtight in the fridge for a long time. You won’t use the whole recipe for one tofu block so store the leftover sauce for next time.

The Sauce

This is the sauce recommended on Just One Cookbook and it is a perfect accompaniment for this hot tofu. I add just a bit more mirin…

Sauce ingredients:

  • 1/2 cup bonito flakes (katsuobushi)
  • 1 tablespoon (15ml) sake
  • 1 tablespoon (15ml) mirin
  • 1/4 (60ml) cup soy sauce
ingredients for yudofu sauce
soy sauce, sake, mirin, katsuobushi (dried bonito flakes)

Use a good quality Japanese soy sauce. I like this made-in-Japan Kikkoman for cooking. It is very tasty and not too expensive. The sake I used is a little fancy for cooking but my local booze shop was out of the cheaper one that I normally use. Avoid using “cooking sake” which is salted and tastes well…bad. If you wouldn’t want to drink it, I would avoid cooking with it. I would say the same thing about wine in Western cuisine.

about mirin…

At least around me, good mirin is very hard to find. Hon-mirin is a real fermented rice wine. It is delicious as it is and is great to cook with but…nearly impossible to find and expensive. Aji-mirin is in most grocery stores. This is a cheap cooking alcohol, sweetened with corn syrup and flavoured to taste something like mirin. It is not ideal but it is most often the only one around. If there is no alternative it works fine here.

a picture of 2 bottles: first is ahi-mirin, second is hon-mirin
Aji-mirin from the grocery store next to hon-mirin. This is the only hon-mirin I have ever found in Toronto.
sauce ingredients portioned on table
1/2 cup katsuobushi, 1/4 cup soy sauce, 1 tablespoon each sake and mirin. Ready to go…

Sauce process

adding liquids to pot
Pour soy sauce, sake and mirin into a small pot and bring to a gentle boil.
adding bonito flakes
add katsuobushi
stirring with chopsticks
stir and cook for one or two minutes over low heat
straining sauce
pour off liquid and squeeze out katsuobushi…don’t worry if some bonito flakes stay in the sauce.
finished sauce in bowl
finished sauce is dark and shiny with a deep savoury aroma

Serve with your favourite sides…

I am having yudofu with a side of fresh salad and white rice. Sauce is in the little pitcher and togarashi spice for a touch of heat.

yudofu hotpot beside white rice, fresh salad
perfect tofu bite with sauce, green onion and togarashi spice
Perfect bite…yudofu, some green onion from the broth, a bit of sauce and a sprinkle of togarashi.

When I eat tofu, it is usually as a side or as a minor ingredient in a bigger dish. This yudofu is the only time that I really enjoy tofu as the centre of the dish. The warm and creamy texture with the savoury salt of the bonito and soy sauce is incredibly satisfying. I eat this almost once a week these days.

If you have any questions or comments please feel free to leave them in the space below. I always look forward to hearing from you. If you want to know where I found real mirin in Toronto, send me a message through the contact form.

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