
Browned Fermented Butter has to be full of buttery goodness, right?!
If you’re looking for Tokyo food souvenirs to bring home to friends and family when traveling out of Japan or to another part of Japan, one great option is the Sugar Butter Sandwich Tree. With a milky sweet white chocolate filling between crispy cookies, this is a delicious treat that just about everyone loves.
Our Japanese-language reporter Yui Imai, who often works out of Taipei, is a big fan of Sugar Butter Sandwich Trees and often buys them for herself when she’s in Japan, but she recently learned some very exciting news: Haneda Airport souvenir shops sell a special, Haneda-only flavor!
They’re “Browned Fermented Butter” flavor, and they’re so popular that over 700,000 units sold in just three months. Apparently, the cookie dough is made with plentiful amounts of fermented butter from France, and the filling contains 1.3 times more chocolate than usual. Yui couldn’t help but be intrigued, so on her next pass through Haneda Airport, she decided to check the limited flavor out.
Apparently, you can find them in Tokusen Yougashikan, a souvenir shop in Terminal 1, and Tokyo Shokuhinkan in Terminal 2, which is where Yui found hers. They come in packs of four, eight, and 12, as well as in variety packs with other popular sweets. Yui bought a pack of eight for 1,296 yen (US$8.56). Apparently they stay fresh for up to three months after purchasing, so you can buy a lot and they’ll keep just fine (in case you want to stock up before your next flight).
The box is decorated with the kanji characters for Haneda Airport as well as an airplane, so there’s no mistaking that this is an airport souvenir.
Inside, eight sandwich cookies in fancy-looking golden packages were neatly lined up in the box’s bottom tray.
It looked really nice!
Yui couldn’t wait to open one up.
The cookies had a beautiful browning to them that made them look utterly delicious. The white chocolate filling inside also looked decadent.
With a snap, Yui cracked it cleanly in half. Mannn…Her mouth watered at the sight.
▼ “Itadakimasu!”
The moment it touched her tongue, a soft, buttery flavor overtook her senses. The fermented butter was so aromatic! And the milky sweetness of the chocolate only served to level it up. It was such a decadent flavor that Yui couldn’t get enough. This might be her favorite kind of Sugar Butter Sandwich Tree yet.
If someone wanted to gift these to her, she would be utterly delighted. Not only are they buttery and delicious, but they also have a sense of specialness to them, since you can only get them at Haneda Airport. If no one does buy them for her, Yui would be all too happy to buy them for herself each time she passes through Haneda Airport, and while she’s there, she’ll be sure to pick up some Sugar Butter Sandwich Tree KitKats as well!
Images © SoraNews24
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!
[ Read in Japanese ]







New Japanese KitKat flavour, Sugar Butter Tree, is like cracking a chocolate tree branch
Haneda Airport’s must-buy Japanese sweet is hard to find but worth it
Nine treats you can only get (and should get!) at Tokyo’s Haneda Airport
Exclusive piping hot baumkuchen at Haneda Airport is the delicious treat all travelers must try
Japanese vending machine at Haneda Airport serves up cute cotton candy for tourists
Man arrested in Tokyo after allegedly luring foreign tourists into shady Kabukicho establishments
7-Eleven Japan reimagines the fruit sando with new chocolate bread version
Japanese recipe for Tempura Twinkies takes America’s favourite snack to a whole new level
Uniqlo looks back to the very start of Pokémon with new black-and-white pixel art T-shirts[Pics]
Studio Ghibli has a new anime out, and there’s only one place in the world where you can see it
Japanese government ID card and app to be required for certain Pokémon card purchases next month
Studio Ghibli calendar figures are back, look amazing whether you check the date or not[Photos]
Burger King Japan goes viral for its new Big Mouth Dirty, but is it really worth the hype?
Family Mart opens new “Famima” flagship store in Tokyo that’s like a tourist attraction
Shizuoka police inspector punished for playing crane games on duty
Japan reacts to Donald Trump’s “Islamic Republic of Japan” remark
Japanese airport rebrands itself as “Sushi Airport” to attract foreign tourists
New Mt. Fuji overnight bus takes travelers from downtown Tokyo straight to the most popular hiking trail
A visit to Sri Lanka’s knockoff knockoff Uniqlo (no, we didn’t stutter) to see its rare “Pikachus”
Three new starter Pokémon Jets to fly in Japan, first begins carrying passengers this month
7-Eleven Japan now has Vietnamese banh mi sandwiches, but how do they taste?[Taste test]
Tokyo revises accommodation tax amidst tourism boom, Airbnb rentals now included
Japan announces sudden 400-percent increase in visa fees for foreigners entering the country
Japanese ninja certification exam attracts 131 candidates from Japan and abroad
Salomon releases Japan-exclusive Mt. Fuji hiking gear that doubles as an amazing souvenir
Studio Ghibli store Donguri Republic announces opening of first-ever store in America
Japan triples departure tax, foreign tourists and locals now must pay more to leave country
Japan launches first overnight Shinkansen bullet train between Tokyo and Osaka this summer
Japanese sweets shop sells an ohagi so exquisite it sells out by noon
New Japanese overnight train coming to connect Tokyo with Tohoku in sleep-travel style
Sanrio Character Poll announces winners, Hello Kitty absent from top 10 in many countries
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Pokémon Tokyo Banana’s latest offering is adorable Pikachu and Eevee chocolate cookie sandwiches
Eevee returns to Japan’s famous Tokyo Banana, bundled with a cute tote bag
What kind of magic happens when you put Japanese combini pastries into a hot sandwich maker?
What is a Butter Manju? We try one from this mega popular Tokyo dessert shop
The airport that’s practically a theme park — Shop, eat, play at the New Chitose Airport!
Comparing the new made-in-China Oreos to the made-in-Japan ones we knew and loved【Taste test】
Japanese cake becomes a hit with foreign tourists, but is it worth the hype?
Japanese cafe serves up fruit sandwiches like nowhere else
New spreadable French Toast from Japan is a game-changer