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The Return of Japan's Unique Nabe: "Yamaimo No Ooi Ryori Ten"

In April 2026, the highly anticipated 'Yamaimo No Ooi Ryori Ten' will be reopening its doors in the heart of Azabu-Juban, Tokyo, after a lengthy hiatus for relocation. Known for its infamous 'brown' nabe, which has gained notoriety for being 'Japan's most unattractive,' this restaurant has turned a culinary challenge into a celebrated triumph.

A Brief Overview of Yamaimo No Ooi Ryori Ten

This establishment, operated by Eureka Kitchen and Lab, is a specialty restaurant focused on yam dishes, utilizing various types like natural yam, long yam, and Yamatokubo yam. By sourcing these ingredients directly from farmers, the restaurant boasts an extensive menu with over 70 unique yam dishes. Here, guests can explore a broad range of offerings - from sashimi and fried dishes to the famed nabe and exclusive yam beer, creating an entirely new yam experience.

The Popularity of the Restaurant

Previously, the restaurant garnered rave reviews, achieving a Tabelog score over 3.5, and it quickly became a bustling hub with full reservations daily. Social media buzz reached new heights, with an Instagram reel surpassing 3 million views, captivating audiences and establishing a loyal following.

An Innovative 'Ugly' Nabe

What sets the restaurant apart is its signature dish, the 'Natural Yam Grated Nabe,' which was crowned the inaugural Grand Prix of Japan's first nationwide nabe competition held in Yokohama. Despite its unappealing appearance—dominated by a single brown hue—it made an indelible mark in the culinary scene, thanks to its delicate and rich flavor that resonated with over 220,000 voters.

Collaboration with DaiSho

Following its award, a forthcoming collaboration with DaiSho, a major seasoning manufacturer, has been announced. Customers will be able to recreate the celebrated 'Grated Yam Nabe' at home with a new hot pot soup scheduled for release in autumn 2026 at supermarkets nationwide. Chef Ryota Tajima emphasizes that this product captures the essence of the restaurant’s flavors, aiming to bring gourmet experiences into home kitchens.

Coziness in the Heart of the City

The newly designed interior of the restaurant utilizes reclaimed wood and continues the theme of nostalgia, creating a warm, inviting atmosphere. The staff will greet patrons with a heartfelt “Okaerinasai” rather than the conventional “Irasshaimase,” making visitors feel as if they have returned to a familiar place. With a focus on comfort and quality, diners can unwind and savor the unique yam dishes.

Pre-Opening Details

In preparation for the grand reopening on April 7, 2026, a special pre-opening event will be held on April 3 and 4, allowing reservations for guests to enjoy a 30% discount on their bill. This initiative not only serves as training for the staff but also invites loyal customers back to experience the revamped menu early. Reservations can be made via Tabelog or by phone, with limited availability.

Restaurant Information:

• - Name: Yamaimo No Ooi Ryori Ten Azabu-Juban
• - Opening Date: April 7, 2026
• - Location: 1-11-11 Azabu-Juban, Minato City, Tokyo 106-0045
• - Phone: 03-5797-8534
• - Hours: 11:30 AM - 2:00 PM, 5:00 PM - 11:00 PM (temporarily dinner only)
• - Seats: 52
• - Closed: Irregular days
• - Social Media: Instagram

As excitement builds for the reopening of 'Yamaimo No Ooi Ryori Ten,' fans are eager to rediscover the experience of savoring what some might call the least attractive yet undoubtedly delicious nabe in Japan!