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Karuizawa Marriott Hotel Introduces Autumn Fermentation Menu

From September 1 to November 30, 2026, Karuizawa Marriott Hotel presents "Prime Shinshu -Autumn-," a creative French dinner course designed to showcase the seasonal bounty of Nagano Prefecture. The menu centers on local ingredients such as chestnuts, mushrooms, and persimmons, paired with premium proteins including Shinshu Salmon and Shinshu Premium Beef. Central to the experience is the integration of regional fermentation culture, utilizing elements like miso (fermented soybean paste), persimmon vinegar, and black garlic to provide depth and nuance to each dish.

A server pouring venison consommé
A server pours a rich venison consommé, part of the autumn fermentation course.

A Gastronomic Journey Through Shinshu’s Autumn and Fermentation

The "Prime Shinshu -Autumn-" course is an exploration of the flavors found in the Shinshu highlands during the transition into the colder months. By incorporating fermented ingredients, the culinary team at Grill & Dining G aims to enhance the natural sweetness and umami of the autumn harvest. The meal begins with a selection of appetizers that set a seasonal tone, featuring Ichida persimmon fromage with prosciutto and a tartare of Shinshu salmon and roasted eggplant, accented with the sharpness of persimmon vinegar.

Full course overview of Prime Shinshu Autumn
The complete "Prime Shinshu -Autumn-" dinner course at Grill & Dining G.

Seasonal Flavors Elevated by Traditional Wisdom

The middle courses demonstrate a blend of French technique and local preservation methods. A clear Nagano venison consommé is followed by an innovative fricassee of escargot and mushrooms, where the earthy notes are balanced by the complexity of black garlic and yogurt. For the fish course, the chef presents a preparation of Shinshu salmon, while the main course features both fillet and sirloin of Shinshu Premium Beef, served with a pungent green chili miso.

Appetizers featuring persimmon and salmon
Appetizers including Ichida persimmon fromage and Shinshu salmon tartare.
Shinshu salmon fish course
The fish course highlights the delicate texture of regional Shinshu salmon.
Shinshu Premium Beef with green chili miso
Shinshu Premium Beef served with seasonal vegetables and a green chili miso sauce.

The dinner concludes with a dessert that pays homage to the famous chestnuts of the Obuse region. A mille-feuille composed of Obuse chestnuts is enriched with fermented butter and Karuizawa honey, offering a final note that is both rich and rooted in the local landscape.

Obuse chestnut mille-feuille dessert
Obuse chestnut mille-feuille prepared with fermented butter and local honey.

Prime Shinshu Stay: An Immersive Autumn Getaway

For guests wishing to extend their experience, the hotel offers the "Prime Shinshu Stay" package. This plan provides accommodations in various room categories, including the North Wing rooms which feature private open-air onsen (hot spring) baths. The package includes the full dinner course accompanied by a glass of sparkling wine and a comprehensive breakfast the following morning, allowing for a complete immersion into the quiet, seasonal atmosphere of Karuizawa.

Karuizawa Marriott Hotel guest room
A North Wing guest room offering views of the surrounding autumn foliage.

Property details

Property
Karuizawa Marriott Hotel
Address
Karuizawa-machi, Kitasaku-gun, Nagano Prefecture
Official site
https://www.karuizawa-marriott.com/
Pricing
Dinner: 22,000 yen per person. Stay Package: From 48,224 yen per person (based on double occupancy).

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Area: Nagano