
You get two very unusual crossover products.
We love a good crossover collaboration in Japan, and for a limited time there’s one currently in play between Maisen, a long-established tonkatsu restaurant founded in 1965, and Kimuraya Sohonten, a long-established bread maker founded in 1869.
If those names sound familiar, that’s because Maisen is famous for its tonkatsu sandwiches, which contain a breaded fried pork cutlet in between two pillowy slices of bread, and Kimuraya is famous for its round buns filled with different types of sweet bean paste, which are so good they supply them to the Imperial household.
So what happens when these two companies join forces and combine their powers? We get Katsu Curry Bread and an An Butter Sandwich.
Both these products were released in limited quantities in a limited area in November last year, but due to their immense popularity, they’ve now returned for a nationwide release from 21 September.
This means more people will be able to enjoy the unique products, and we picked ours up at the Kimuraya store inside the Isetan department store in Shinjuku, Tokyo.
▼ So let’s take a closer look at the two new items, starting with the Katsu Curry Bread, which retails for 352 yen (US$2.44).
The package contains the names and logos of the two companies, which is an unusual sight in itself, seeing as we’re not used to seeing them side-by-side like this. These are two very esteemed companies that usually keep to their own lanes, so the package itself is enough to attract the attention of anyone who sees it.
▼ Add in the fact that it says “Katsu Curry Bread” in Japanese but “Cutlet Curry Dough Nut” in English, and our interest is sufficiently piqued.
For us, a good curry bread starts with the exterior casing, and when it’s fried with a generous coating of breadcrumbs like this, it’s a sign of good things to come. According to Kimuraya, the creator of this product, the curry bread, or “curry dough nut”, contains their company’s special curry sauce in the filling, along with Maisen’s famous pork cutlet, which is then encased in Kimuraya dough and finished with Maisen’s breadcrumbs.
▼ A true collaboration.
The cutlet inside looks exactly like the ones we usually see in the middle of Maisen’s tonkatsu sandwiches, while the bun has the same airy texture as those you’d get at Kimuraya. While the products looked familiar, eating them together hit us with an unexpected explosion of flavour, with the curry delivering a serious punch of spice.
▼ It was deliciously spicy and amazingly soft — so soft you can cut through the bun with chopsticks.
The only criticism we have with the curry bread is they might’ve done well to dial down the spiciness as some curry bread lovers might prefer a milder filling. We love a spicy filling, though, so we were happy with the bun, and looking forward to discovering what the sandwich had in store for us next.
▼ The An Butter Sandwich (340 yen), combines Maisen’s soft white bread with Kimuraya’s “an”, or “bean paste”.
We couldn’t help but smile as we pulled the trio of sandwiches out of the package, as they looked exactly like the ones you get at Maisen, but instead of having a fried cutlet inside them, they were filled with red bean paste and butter!
▼ Mmmm, so much butter…
While the bread here is identical to the ones made by Maisen for their tonkatsu sandwiches, the red bean paste has been specially made by Kimuraya to perfectly complement the flavour of the bread. The product itself has been created by Maisen, who clearly worked closely with Kimuraya during its production, as the red bean paste is sweet and jelly-like, almost like a yokan in its texture and sweetness, which highlights the craftsmanship of the bean bun specialist while taking the soft white bread to new levels of deliciousness.
The An Butter Sandwich is said to be even tastier when lightly grilled in an oven toaster, so definitely give that a try if you get your hands on a pack. Both these products are absolutely delicious, and maintain the high levels of quality we expect from the famous companies behind their creation.
It’s nice to see two esteemed names in the food world come together to combine their powers for the good of our taste buds. Now if only they upsized their products to match the giant proportions of Kimuraya’s limited-edition sakura bun. Wouldn’t that be something!
Store information
Kimuraya Shinjuku Isetan / 木村屋 新宿伊勢丹
Address: Tokyo-to, Shinjuku-ku, Shinjuku 3-14-1 Isetan Shinjuku Main Branch Basement 1F
東京都新宿区新宿3-14-1 伊勢丹新宿本店 地下1階
Open: 10:00 a.m.-8:00 p.m.
Closed: New Year’s Day
All 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 ]









We’re hard-pressed to find anything not delicious in the new tamatoro pressed tonkatsu sandwich
Katsudon vs. tonkatsu vs. katsu sandwich – What’s the best way to eat pork cutlet in Japan?
Beyond matcha sweets: Japan’s favorite katsu sandwich maker releasing matcha pork cutlet sandwich
Tokyo’s crazy huge sakura sweet bean bun makes Mr. Sato happier/fuller than we’ve ever seen him
Red bean paste and cream cheese — a divinely sweet combination?
Japanese onsen egg maker from 100-yen store Daiso needs to be on your shopping list
Japanese woman stumbles on the power of the infamous “gaijin seat” phenomenon during flight
Starbucks Japan releases new My Fruit³ Frappuccino at only 34 stores around the country
Komachi Shokudo: Japanese mum’s-style cooking for breakfast, lunch and dinner in Tokyo
Super Mario teams up with JR Kyushu for the perfect power-up steamed bun snack
We asked our Japanese team of writers how they deal with seasonal allergies in Japan
Studio Ghibli passport cases are here to keep you company while you travel
Japan’s cherry blossom season predicted to start earlier than we’d thought, especially in Tokyo
Majority of Japanese women in survey regret marrying their husband, but that’s only half the story
Japan’s Top 10 Scenic Train Trips–according to two “densha otaku” train guides
Train station platform ramen store closes its doors on half a century of history in Tokyo
Studio Ghibli releases Catbus pullback keychain that runs like the anime character
Studio Ghibli adds new Mother’s Day gift sets to its anime collection in Japan
Virtual idol Hatsune Miku redesigned with look that adds new elements and brings back old ones
The next time you’re feeling stressed out, you could relax on a Pokémon Psyduck chair from Japan
Starbucks Japan opens new cafe and art gallery in top Tokyo tourist neighbourhood
The top 10 graduation songs in Japan as chosen by current Japanese high school students
7-Eleven Japan’s giant fried chicken skewer would be too big to eat, so it’s really for cuddling
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Nine great places to see spring flowers in Japan, as chosen by travelers (with almost no sakura)
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Starbucks Japan releases first-ever Hinamatsuri Girls’ Day Frappuccino
Starbucks Japan releases a new Cream Puff Frappuccino for a limited time
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
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
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Japan’s newest Shinkansen has no seats…or passengers [Video]
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says