According to a press release distributed by Yoshinoya Holdings on October 21, 2026, Hanamaru Co., Ltd. (headquartered in Takamatsu, Kagawa), which operates the Sanuki udon chain Hanamaru Udon, is launching two new dishes for late autumn: Kamo Negi Udon (duck and leek udon) and Kamo Seiro Udon (chilled udon with a hot duck dipping broth). These are the first duck broth udon dishes Hanamaru Udon has offered nationwide. They go on sale for a limited time from Thursday, October 22, 2026, at Hanamaru Udon locations across Japan (excluding some stores). Sales are scheduled to run until early December.

Hanamaru Udon’s First Duck Broth Menu Arrives for Autumn
The new duck broth udon was created for the time of year when the air starts turning chilly. Its broth is infused with high-quality duck fat and packed with umami, and it comes with moist, tender duck meat. White leeks are added too, grilled until fragrant to bring out their soft, mellow sweetness. The tagline is umami-rich and aromatic. Every bite brings together the deep flavor of duck and firm, chewy Sanuki udon, making it a luxurious bowl that only autumn can offer.
The lineup comes in two styles: Kamo Negi Udon, served in hot broth, and Kamo Seiro Udon, where cold noodles are dipped into a hot broth. Both put the umami of duck front and center, yet they are eaten in completely different ways, so you can choose whichever suits your mood that day.

Kamo Negi Udon: A Warming Bowl of Duck Broth
Kamo Negi Udon pairs chewy Sanuki udon noodles with a special hot duck broth. Its biggest draw is the savory richness of the premium fat released from the duck. As the fat slowly melts into the broth, it creates a deep, full-bodied flavor. Add the flavorful duck meat and fragrant grilled leeks, and a luxurious taste fills your mouth.
A touch of yuzu is added at the end for a refreshing citrus aroma. Hanamaru presents it as a bowl that warms you from the inside out and makes you want to drink every last drop. It is ideal for lunch on a cold day or dinner after work.
Kamo Negi Udon Prices (tax included)
- Small: ¥890
- Medium: ¥1,080
- Large: ¥1,300

Kamo Seiro Udon: Chilled Noodles Coated in Rich Duck Flavor
Kamo Seiro Udon pairs a hot dipping broth with cold noodles. The broth locks in the umami of premium duck fat and is seasoned sweet and savory so it clings well to the noodles.
To eat it, you dip noodles that have been firmed up in cold water into the warm, rich broth. This lets you enjoy the aroma of the ingredients along with the signature firmness and silky smoothness of Sanuki udon. Moist duck meat and fragrant white leeks are included as well, so the duck still shines in this dipping style. It is recommended for days when you want to savor the chewiness of the noodles themselves, or when you simply want something that goes down smoothly.
Each size is priced ¥100 lower than the Kamo Negi Udon.
Kamo Seiro Udon Prices (tax included)
- Small: ¥790
- Medium: ¥980
- Large: ¥1,200

Sales Overview
- Locations: Hanamaru Udon stores nationwide in Japan (excluding some stores)
- Sales period: Thursday, October 22, 2026 to early December (planned)
- Kamo Negi Udon (hot): Small ¥890 / Medium ¥1,080 / Large ¥1,300 (tax included)
- Kamo Seiro Udon (hot dipping broth, cold noodles): Small ¥790 / Medium ¥980 / Large ¥1,200 (tax included)
- Takeout: Available
- Mobile ordering: Available
- Delivery: Available
Dine-in and takeout prices are the same, but takeout orders include a ¥50 container fee per bowl of udon. Prices also differ at some stores and for delivery, so it is a good idea to check before ordering.
Win 5 Free Udon Vouchers Daily on Official X
To celebrate the launch, Hanamaru Udon’s official X account (formerly Twitter: @hanamaru_udon) is running a giveaway. Winners receive five vouchers for free udon of their choice. The campaign uses an instant-win format, so you find out right away whether you have won, and you can enter every day during the campaign period.
- Campaign period: Thursday, October 22, 2026, 12:10 to Saturday, October 31, 23:59 (JST)
- How to enter: (1) Follow the official account @hanamaru_udon (2) Quote-post with the hashtag #はなまるの鴨だしうどん
- Prize: Five vouchers for free udon of your choice
- Winners: One per day during the campaign (10 in total)
Summary
Hanamaru Udon’s first nationwide duck broth udon is an autumn-only menu built around the richness of duck fat and the toasty aroma of grilled leeks. You can choose between the hot Kamo Negi Udon and the dipping-style Kamo Seiro Udon depending on your mood. Both are also available for takeout, mobile ordering, and delivery. Sales are expected to continue until early December, so if they catch your interest, try them sooner rather than later.
Source: press release by 株式会社吉野家ホールディングス (PR TIMES, in Japanese)