This site has covered some frankly ridiculous foods in the past. Who could forget our articles on deep-fried caterpillars, the 1050-bacon strip Whopper, or the bright blue curry challenge? But this is the first time we’ve covered something that actually made me throw up in my mouth a little.
A sandwich shop in Suzuka City, Mie Prefecture, has conjured up this ungodly creation and, even more strangely, it seems people want to eat it. It’s called the Natto-Coffee Gelatin Sandwich, and that is exactly what it is: natto and coffee gelatin slathered with whipped cream and plopped on some unoffending white bread. For those of you unfamiliar with natto, it is an extremely stinky and sticky food made from fermented soybeans. Yes, rotting soybeans.
Inexplicably, this sandwich has become one of the shop’s most popular items, leading the representative director Koji Suzumura to explain their motivation in creating this abomination.
The sandwich was actually invented by a family member who previously ran the shop. “One day, he was sitting at home thinking about new menu ideas. He opened the refrigerator and a pack of natto happened to tumble out. There was also some coffee gelatin in the fridge, so he decided to try spreading the two on bread,” says Suzumura. And so, in the summer of 1997, the sandwich debuted. But it wasn’t exactly a hit right away.
“I was actually the one who tried the first natto-coffee gelatin sandwich,” recalls Suzumura. “I honestly didn’t think it was very good. I thought maybe he was giving it to me as a joke or something… It didn’t sell at all, and I thought we would have to discontinue it, but since it was such a unique item, maybe the only one in the world, I thought we should try and find a way to continue with it. So, after about 4 years, I played around with it and made some improvements to the ingredients and the proportions,” he explains.
When asked if the improvements made the sandwich taste better, Suzumura modestly replies, “Well, I thought it might be approaching edible.”
Over the years, the sandwich was featured in various media and on the internet and started to gain a reputation. Now it’s one of the shop’s top 3 best-sellers. However, Suzumura himself is a bit bemused by its popularity. “People say it’s really delicious or interesting, but I don’t really get it. I’m just happy if my customers are happy.”
The goal of his shop is to create sandwiches that fit the Japanese palette, so a lot of the menu items make use of common Japanese side dishes. “Our policy is, if it fits between two pieces of bread, let’s give it a try. We’ve invented a lot of sandwiches this way, not just the natto-coffee gelatin one. We’ve tried sponge cake, saury, lobster, abalone, minced tuna,” says Suzumura.
The saury sandwich placed cooked saury and rice between two slices and was something of a surprise. The minced tuna however had a very fishy smell and was discontinued after just two weeks despite its inventiveness.
Well, nothing ventured, nothing gained, I suppose, but I think I’ll stick with good old-fashioned cold cuts in my sandwiches. If you would like to take on the natto-coffee gelatin sandwich, you’ll have to journey to Mie Prefecture, as it’s only available there. On the plus side, it will only cost you 325 yen (US$3.65) to assault your taste buds once you are there.
Source: MyNavi News

We try ice cream with a topping of natto fermented soybeans, because the Internet told us to
Japanese cafe serves up fruit sandwiches like nowhere else
7-Eleven’s new whipped cream sandwich takes Japanese convenience store food to a whole new level
We try the “Ramen Roll” sandwich, because why not have a bowl of ramen on a hot dog bun?
This is Akihabara’s best hidden food vending machine: The Mansei meat sandwich machine!
Howl’s Moving Castle’s scene-stealing dog is here to clean your home as a plushie mop
Mt. Fuji decorated with a 500,000-flower pink carpet is Japan’s ultimate spring view
Pringles Chocolate, but with a Japanese twist, is the snack hack you should be trying right now
30 Pikachus want to share a Tokyo hotel room with you that has separate Grass, Water, Fire spaces
You can assemble a well-balanced team of Pokémon, them eat them, thanks to Japanese cake chain
Studio Ghibli celebrates the magic of movie theaters with short video, Hayao Miyazaki illustration
Tokyo turns its phone booths into free Wi-Fi hotspots, and here’s how to use them
Japan’s prime minister exchanges Dragon Ball kamehamehas with president of France[Video]
Kentucky matcha?!? KFC Japan now has frozen green tea dessert beverages
Changes to Japan rail pass make it fall out of favour with travellers
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Pokémon and Ikea Japan cross over into each other’s worlds with collaboration events
Starbucks Japan closing only Shinkansen platform branch for popularity-triggered renovations
Two food hacks take Japan’s convenience store fried chicken to amazing new sandwich heights
7-Eleven Japan’s new baked-in-store sweet treat is only available in three parts of the country
Man bites woman at cherry blossom park in Japan, dies shortly after
Peanuts and Coke becomes a viral hit in Japan, but is it a trend worth joining?
Can a downtown Tokyo super sento bathhouse beat a hotel for a one-night stay?
New Japanese KitKats come in sakura flavour, with poetic symbolism for success
Japan now has a special desk for people who work at home with a pet cat[Photos]
Famous Tokyo cherry blossom spot installs view-blocking screens to fight overcrowding[Video]
Uniqlo announces new T-shirts for One Piece, Naruto and more for manga publisher’s 100th birthday
Train station platform ramen store closes its doors on half a century of history in Tokyo
Starbucks Japan releases new My Fruit³ Frappuccino at only 34 stores around the country
Krispy Kreme releases Super Mario doughnuts in Japan for a limited time
Studio Ghibli releases Catbus pullback keychain that runs like the anime character
Japanese onsen egg maker from 100-yen store Daiso needs to be on your shopping list
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
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
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
We find the most ridiculous but awesome sandwiches at a little-known countryside supermarket
Japan’s 10 weirdest ice cream flavors
Luigi set to star in Family Mart’s latest collab event with exclusive sandwiches and blankets