Izu Wasabi-Don, A Bowl Celebrating Fresh Wasabi

Wasabi-don is a simple dish of warm rice topped with shaved bonito flakes and freshly grated true wasabi, finished with a drizzle of soy sauce. Izu, blessed with pure spring water, has thriving wasabi cultivation and is known as a source of highly fragrant true wasabi. Shizuoka Prefecture ranks among the nation's leaders in the value of true wasabi produced, and Izu is one of its principal growing areas. Wasabi is a spice native to Japan, long cherished as an indispensable partner to sushi and sashimi. Humble though it is, this bowl lets you fully enjoy the fresh pungency and natural sweetness of wasabi itself.

Highlights

Freshly grated true wasabi has a sharp heat with a faint sweetness and aroma behind it. The clean sting that rises through the nose is a treat only fresh wasabi can give — never powdered wasabi or the kind in a tube. The minimal combination of bonito flakes, rice and soy sauce brings out everything wasabi has to offer. Some shops let you eat while looking out over the wasabi fields, an experience unique to the growing region. One account of how wasabi growing began in Izu holds that in 1744, Itagaki Kanshiro, warden of the Amagi mountains, brought seedlings back from Utogi in Suruga. In time Izu developed the tatami-ishi method of cultivation, in which stones large and small are laid together and cold, oxygen-rich spring water is kept flowing without pause, allowing fragrant wasabi to be grown reliably. This tradition was recognised in 2018 as a Globally Important Agricultural Heritage System under the name "Traditional Wasabi Cultivation in Shizuoka," and wasabi-don is the simplest possible way to taste the bounty of those terraced beds.

A Grating Technique That Draws Out the Aroma

Wasabi changes character to a surprising degree depending on how you grate it. The trick is to hold the wasabi upright against a fine sharkskin grater and turn it slowly, without pressing, as if drawing circles. The finer the grate, the more the fibres break down and the more the heat and aroma rise, producing a creamy sweetness beneath the sharp sting. The end nearer the stem has better aroma and gentler heat, while the tip end is hotter, so using each to suit your taste is a connoisseur's pleasure. Many shops serving wasabi-don let you grate your own, and the moment when the scent of freshly grated wasabi rises with the steam from the rice is a treat you can only have in the growing region.

The Wasabi Terraces of Amagi and a Full Course of Wasabi

The famed wasabi country of Izu is the Amagi area around Joren Falls and Naka-Izu. Terraced wasabi beds run in tier after tier along the clear mountain streams, and the landscape itself is one of the sights. At Amagi Wasabi no Sato, inside the Amagi-goe roadside station on the national highway, you can take in wasabi growing, processing and sales all in one place, and meet a whole range of wasabi flavours — from wasabi soft-serve ice cream with its sharp lift through the nose to wasabi-zuke pickles that are a welcome companion to rice. Stopping by after your bowl of wasabi-don lets you taste the wasabi raised by Izu's clear streams from a different angle.

Enjoying the Seasons

Wasabi can be enjoyed all year, but the aroma stands out even more in the seasons when the clear streams run cold and pure. In summer the cool pungency of wasabi stirs the appetite, fitting for Izu as a place to escape the heat. In the seasons of fresh greenery or autumn colours, pairing it with a nature walk along the valleys is also a treat.

Access and Basic Information

You can taste it near the wasabi fields scattered in the mountains of the Izu Peninsula or at shops run directly by wasabi farmers. The area around Amagi and Joren Falls in central Izu is known as a noted growing region where wasabi fields spread out. Access by car is convenient and pairs well with a drive along the valleys. Many shops serve a bowl from around a thousand yen, a humble yet satisfying dish. Many sit in quiet spots away from the main tourist areas, so confirming the location in advance is reassuring.

Practical Travel Notes

Many wasabi-don shops sit in the mountains and along the valleys of the Izu Peninsula, and quite a few are hard to reach by public transport alone. Basing your travel on a car and combining the route with sightseeing spots such as Amagi and Joren Falls lets you get around without strain. Freshly grated wasabi loses its aroma as time passes, so the trick to enjoying the fragrance is to grate the wasabi served with the bowl just before eating, or to eat it as soon as it is served. At some shops, roadside stations and areas around the falls also offer wasabi-themed tastes such as wasabi soft serve and wasabi pickles, broadening the range of eating around. Izu is also known as a hot spring region, so combining a drive aimed at wasabi-don with hot springs and a nature walk makes a day that fully savors the gifts of the mountains. A bowl enjoyed in a quiet setting along a clear stream is an experience hard to find in the city.

A Quick Tip

At some shops you can grate the wasabi yourself and enjoy the just-made aroma to the fullest. To soften the heat grate the stem side, and to enjoy the aroma grate the base near the root. If you visit by car, combining it with sightseeing at Amagi and Joren Falls lets you savor the charm of the Izu mountains all together.

Sightseeing Checklist

• Budget guide: From a few hundred to about 1,000 yen for a wasabi rice bowl
• Where to eat it: Wasabi farms and diners in Izu and Amagi
• Best time of day: Mainly at lunchtime, combined with a look at the wasabi terraces
• Avoiding the crowds: Diners in the tourist areas are busy at lunchtime, so go outside peak hours
• Combine it with: Wasabi-zuke and fresh wasabi as a souvenir, Joren Falls, the Amagi Pass and the Kawazu Seven Falls

📚 Sources

This article is compiled from tourism information for Shizuoka Prefecture and information published by the individual shops. Prices, menus and seasonal availability are subject to change, so please check each shop's official information for details.