September 2, 2025
Soup and cocktails made with vegetables grown in water chestnut compost are served.
Soup made with sustainable vegetables (corn and onions) grown with compost derived from water chestnuts in the moat of the Imperial Palace Outer Gardens will be served at 14 Royal Park Hotels.
In addition, original cocktails incorporating onions will be sold exclusively at the four iconic brand hotels.
This year, we will once again share the fruits of this project, which connects urban and rural areas with the people involved in the environmental restoration of the Imperial Palace Outer Garden moat, an oasis in the city center, the farmers who grow vegetables with a focus on soil and fertilizer, and the chefs and bartenders who transform these into delicious soups and cocktails.
Soup made with sustainable vegetables
Corn and onions grown in the Yatsugatake Mountains are cooked in a way that brings out the sweetness and flavor of the fresh corn and onions while they are still fresh, under the supervision of the group's Executive Chef, Masaki Matsuyama, and are then turned into soup.
corn soup
Fresh corn, delicious even when raw, is made into a refreshing chilled soup. The slight saltiness brings out the sweetness and umami, and the corn is deliberately left whole to create a smooth texture, allowing you to enjoy the natural sweetness of the ingredients.
Onion soup
This warm soup not only allows you to enjoy the sweetness of onions, but also the deep richness and aroma that is brought out by adding butter and sautéing.
It's a comforting taste that seeps into your body and soul.
- Offer period
Scheduled for Tuesday, September 16, 2025 to Friday, November 21, 2025
*Ends while supplies last.
- Place
・仙台ロイヤルパークホテル
オールデイダイニング「シェフズ テラス」
・ロイヤルパークホテル（東京・日本橋）
シェフズダイニング「シンフォニー」
エグゼクティブラウンジ
・ザ ロイヤルパークホテル アイコニック 東京汐留
オールデイダイニング「HARMONY」
エグゼクティブラウンジ
・ザ ロイヤルパークホテル アイコニック 名古屋
オールデイダイニング「THE 7th TERRACE」
・ザ ロイヤルパークホテル アイコニック 大阪御堂筋
フレンチレストラン「La Belle Assiette」
エグゼクティブラウンジ
・ザ ロイヤルパークホテル 銀座6丁目
レストラン「洋食屋 銀座ランプ亭」
・ザ ロイヤルパーク キャンバス 札幌大通公園
CANVASラウンジ
・ザ ロイヤルパーク キャンバス 銀座８
レストラン「Opuses」
「TEA SALON」
・ザ ロイヤルパーク キャンバス 名古屋
レストラン「ムッシュいとう」
・ザ ロイヤルパーク キャンバス 京都二条
CANVASラウンジ
・ザ ロイヤルパーク キャンバス 大阪北浜
CANVASラウンジ
・ザ ロイヤルパーク キャンバス 神戸三宮
CANVASラウンジ
・ザ ロイヤルパーク キャンバス 福岡中洲
レストラン「ONO HAKATA－Octo Natura Kyusyu－」
・丸ノ内ホテル
フレンチレストラン「ポム・ダダン」
*The method of serving may vary by hotel, such as part of the breakfast or lounge menu, or a lunch or dinner dish.
Sustainable vegetable cocktails
"KNOT" is an abbreviation of the initials of the four iconic brand hotels (Kyoto (K), Nagoya (N), Osaka (O), and Tokyo (T)), and the overall theme is "Tie a KNOT," reflecting the desire to be a "knot" that connects cities and regions, and people to people. Enjoy a sophisticated and sophisticated time with special cocktails carefully crafted by the bartenders at each hotel.
ONION roni
ザ ロイヤルパークホテル アイコニック東京汐留
バー・ラウンジ「THE BAR」
※提供時間 10:00～22:30（L.O.22:00）
1,700 yen
This original twist on the Negroni is made with Black Tea, which pairs well with onions, and bergamot liqueur, which adds a gorgeous aroma, and gin that has been slowly steeped with onions. The subtle sweetness of onions, the richness of Black Tea, and the refreshing aroma of bergamot all come together in a drink that can only be enjoyed here.
Spicy Onion Sour
ザ ロイヤルパークホテル アイコニック 名古屋
オールデイダイニング「THE 7th TERRACE」
※提供時間 17:30～22:00（L.O.21:00）
1,400 yen
This drink brings out the rich flavor of onion with dry gin and sparkling wine. The rim of the glass is decorated with black pepper, creating a snow-style drink, and the addition of a chili pepper adds a spicy kick. Experience the harmony of the four ingredients: gin, sparkling wine, pepper, and onion.
Onion ~Derive From Gibson~
ザ ロイヤルパークホテル アイコニック 京都
バー「THE BAR」
※提供時間 17:00～23:00（L.O.22:30）
1,700 yen
This is a modern reimagining of the Standard cocktail "Gibson." Carefully dried onions are infused in gin to create a fragrant flavored gin. It is then shaken with dry vermouth, and the flavors of the gin and onion combine to create a deep, rich flavor.
Onion Martini
ザ ロイヤルパークホテル アイコニック 大阪御堂筋
バー・ラウンジ「THE BAR」
※提供時間 11:30～22:30（L.O.22:00）
1,400 yen
The Martini, known as the "King of Cocktails," has been reimagined by incorporating the unique characteristics of the iconic Osaka Midosuji. By using pickled onions instead of stuffed olives, the refreshing acidity and pleasant texture are accented. Enjoy the marriage with the rich aroma of dry gin.
- Offer period
September 16, 2025 (Tuesday) - November 21, 2025 (Friday)
Mitsubishi Estate Group's sustainable initiatives utilizing resource recycling
Since 2017, the Mitsubishi Estate Group has been collaborating with the Ministry of the Environment's Imperial Palace Outer Gardens Management Office on the "Moat Project," an initiative aimed at restoring the waterside ecosystem and preserving biodiversity in the Imperial Palace Outer Gardens moat in Marunouchi, Tokyo.
Since 2019, the company has been composting the waterweed "Hishi" (water chestnuts) harvested during the Ministry of the Environment's maintenance of the Imperial Palace Outer Garden moat, and working with organic farmers in Yamanashi Prefecture, the company has cultivated vegetables using this compost, which are then used as ingredients in the cafeteria at Mitsubishi Estate's headquarters, among other places, building a resource circulation system that connects urban and rural areas.
