
Don’t worry–despite the name, it won’t bite back.
At first glance, oni-manju (鬼まんじゅう) seems like an odd choice for the name of a simple dish featuring the star ingredient of sweet potato. After all, oni means “demon/ogre” and manju is a kind of Japanese confection. However, it’s actually a familiar and beloved sweet treat in the Tokai region of Japan, southwest of Tokyo, that was especially popular during post-war times because it requires few ingredients which are also relatively easy to procure. The “demon” in its name comes from the fact that the jagged cuts of sweet potato sticking out of dough are reminiscent of the horns and clubs wielded by oni in Japanese mythology.
Our Japanese-language reporter sweetsholic had eaten oni-manju before at a michi no eki in the Tokai region and remembered its distinctively soft texture and gentle sweetness. Even though sweet potatoes aren’t quite in season at the moment, she was recently overcome by a sudden craving for the snack and decided to make her own version at home. She used a recipe titled “Our local cuisine: Oni-manju from Aichi Prefecture” from the official website of Japan’s Ministry of Agriculture, Forestry and Fisheries (MAFF) as her guide. Let’s get cooking, shall we?
Ingredients
- 1 small sweet potato, approximately 200 grams (7.1 ounces)
- soft wheat flour (hakurikiko/薄力粉), 80 grams
- non-glutinous rice flour: komeko/米粉 or joshinko/上新粉, 20 grams
- sugar, 60 grams
- water, 35 milliliters
Directions
Peel and cut the sweet potato into roughly one-centimeter long cubes, then soak in water and dry. For her version, sweetsholic actually used pre-cut frozen sweet potato. Coat the potato with sugar.
Add all other ingredients into a bowl and mix well before adding the sugared potatoes. Divide the mixture into four equal parts over slips of parchment paper and prepare to steam in a steaming device for approximately 15 minutes. That’s it!
▼ MAFF’s recipe also includes the following short video guide
So what was the verdict? The texture was pleasantly springy due to the presence of the soft wheat flour and the orange color also added a bright visual pop to its deliciousness.
Oni-manju can be stored in the fridge easily so you can absolutely make a big batch at once for future nibbling. Sweetsholic also recommends playing around with different variations on the recipe such as by decreasing the amount of sugar slightly and instead adding a little bit of salt. Happy steaming those demons, everyone!
Source: MAFF
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 ]




Kyoto’s demon manju is as big as the local legend that inspired it
Make your own Japanese manju snacks with hotcake mix【SoraKitchen】
Mister Donuts Japan to release mouthwatering sweet potato donuts to welcome a delicious autumn
Japanese recipe for Tempura Twinkies takes America’s favourite snack to a whole new level
Gift-giving made easy! The most popular omiyage bought in Japan, station by station
Cup Noodle unveils first-ever cold-water instant ramen in Japan
Japanese government ID card and app to be required for certain Pokémon card purchases next month
Studio Ghibli releases new Totoro coin purses…but who’s the blue character?
Tokyo’s Giga Mart lets visitors “steal” from a convenience store… if cameras don’t catch you
Studio Ghibli has a new anime out, and there’s only one place in the world where you can see it
Starbucks Japan adds shaved ice desserts to the menu at select locations
Uniqlo looks back to the very start of Pokémon with new black-and-white pixel art T-shirts[Pics]
Hiker needs to be rescued from Mt. Fuji two times in two days, but system is working as intended
Studio Ghibli brings anime characters to the table with new Totoro placemat that’s like a movie cell
Onidon opens in Tokyo with unique fusion tempura rice balls you won’t find anywhere else
Family Mart opens new “Famima” flagship store in Tokyo that’s like a tourist attraction
Japan reacts to Donald Trump’s “Islamic Republic of Japan” remark
Japanese airport rebrands itself as “Sushi Airport” to attract foreign tourists
Three new starter Pokémon Jets to fly in Japan, first begins carrying passengers this month
New Mt. Fuji overnight bus takes travelers from downtown Tokyo straight to the most popular hiking trail
Tokyo revises accommodation tax amidst tourism boom, Airbnb rentals now included
Yoshinoya and Dragon Quest slaying scalpers with shift to made-to-order collaboration merch
Tochigi man shares his family’s process for creating 16 years worth of rice paddy art
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
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
We can’t stop eating this chicken ramen noodle and chocolate snack we made【SoraKitchen】