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Onigiri (お握り or 御握り), also known as omusubi (お結び) or nigirimeshi (握り飯), is a Japanese rice ball made from white rice. It is usually formed into triangular or cylindrical shapes, and wrapped in nori (seaweed). Onigiri traditionally have sour or salty fillings such as umeboshi (pickled Chinese plum), salted salmon, katsuobushi (smoked and fermented bonito), kombu, tarako or mentaiko (pollock roe), or takanazuke (pickled Japanese giant red mustard greens). Because it is easily portable and eaten by hand, onigiri has been used as portable food or bento from ancient times to the present day. Originally, it was used as a way to use and store left-over rice, but it later became a regular meal. Many Japanese convenience stores and supermarkets stock onigiri with various fillings and flavors. It has become so mainstream that it is even served in izakayas and sit-down restaurants. There are even specialized shops which only sell onigiri to take out. Due to the popularity of this trend in Japan, onigiri has become a popular staple in Japanese restaurants worldwide.

Onigiri is not a form of sushi and should not be confused with the type of sushi called nigirizushi or simply nigiri. Onigiri is made with plain rice (sometimes lightly salted), while sushi is made of rice with vinegar, sugar and salt. Onigiri makes rice portable and easy to eat as well as preserving it, while sushi originated as a way of preserving fish.

History

Prehistoric

On November 12, 1987, lumps of carbonized grains of rice, thought to be riceballs, were excavated from a building belonging to the Yayoi period (2000 years ago) in the Sugitani Chanobatake Ruins in Ishikawa Prefecture. The carbonized rice had traces which revealed that it was formed by human hands, thus it was initially documented as "the oldest onigiri." In subsequent research, it was thought to be steamed and grilled, rather than boiled like today's rice, similar to another dish called chimaki. Since then, it has been academically called the "chimaki-shaped carbonized rice lumps (チマキ状炭化米塊)".

Pre-Modern

Before the use of chopsticks became widespread, in the Nara period, rice was often rolled into a small ball so that it could be easily picked up. In the Heian period, rice was made into small rectangular shapes known as tonjiki so that they could be piled onto a plate and easily eaten. At that time, onigiri were called tonjiki and often consumed at outdoor picnic lunches

Modern

In the 1980s, a machine to make triangular onigiri was invented. Rather than rolling the filling inside, the flavoring was put into a hole in the onigiri and the hole was hidden by nori. Since the onigiri made by this machine came with nori already applied to the rice ball, over time the nori became moist and sticky, clinging to the rice.

A packaging improvement allowed the nori to be stored separately from the rice. Before eating, the diner could open the packet of nori and wrap the onigiri. The use of a hole for filling the onigiri made new flavors of onigiri easier to produce as this cooking process did not require changes from ingredient to ingredient. Modern mechanically wrapped onigiri are specially folded so that the plastic wrapping is between the nori and rice to act as a moisture barrier. When the packaging is pulled open at both ends, the nori and rice come into contact and are eaten together. This packaging is commonly found for both triangular onigiri and rolls (細巻き).

Rice and shapes

Usually, onigiri is made with boiled white rice, though it is sometimes made with different varieties of cooked rice, such as:

-Okowa or kowa-meshi: glutinous rice cooked or steamed with vegetables

-Sekihan: rice cooked with red azuki beans

-Maze-gohan: rice cooked with various preferred ingredients

-Fried rice

-Brown rice

The rice may be seasoned with salt, sesame, furikake, dried shiso flakes, and so on.

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243 comments
  • I'm a little ashamed to admit how much Northernilon's real-life yassification after he got into exercise biking has motivated me to get back into shape

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  • 🌟 PokeDoku Champion 🌟 📅 2025-05-23

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    last week i lock in a school proyect so i lost my 7 day streak

    , but i finish all stuff for the semester now so i have slowing getting it back

  • I fuckin hate being so angry sometimes, it's embarassing to lose control of and I immediately think about Palestine again and have it put into perspective for me that I am shamefully lacking in emotional fortitude and would have my psyche shredded by the evil being inflicted there. To the point that even comparing the two feels like a bad joke, but I can't stop comparing it with...everything. This genocide is a hideous black hole devouring all horizons and my thoughts can never escape it's gravity for long.

  • My brother recommended this manga to me called The Isekai Doctor - Any Sufficiently Advanced Medical Science Is Indistinguishable From Magic and I dragged my feet in getting around to reading it because, i'mma be real, I don't even really read manga that often anymore

    but it's actually pretty good, I like the art, and I like the underlying materialism inherent to the set up. Like, the setting is one where demihumans persecuted humans because they're weak or whatever, so god gave them healing magic, but then a plague happened and the humans started to take over and now they monopolize healing magic to their benefit

    so the MC is a medical doctor who gets isekai'd and starts treating people's injuries with like, you know, medical science. He's got a doctor's bag with some basic medicine, scalpels, saline, etc., and it's enough that he can perform some relatively miraculous saves, enough that people think he's some kind of mage

    anyway there's like the underlying geopolitical consequences looming of his ability to teach this knowledge to other races, breaking the human race's monopoly on healing, as well as like, obviously he's going to have to figure out some means of replicating his tools and medicines and equipment, which I'm excited to see happen

    CW though, slavery shit, in the very beginning he saves a girl and woops she's a slave and let's just say her village gets Real Weird With It, even for anime with slavery (basically I mean like, THEY MADE HER A SLAVE, but then they use that status to treat her like shit, like even her own grandpa, like, what the fuck guys)

    other random thing I like: instead of a stupid little animal sidekick (that turns into a little girl) like every other fucking mango out there, he gets a giant fucking Chimera buddy, and the artist MAKES HIM CUTE AS FUCK. CUTE LION FACE. CUTE LIL SNEK. LOVE HIM. idk if he'll turn out to be a little girl though, it remains to be seen

    edit: CAT GIRL MEDICINE

  • Finished two of my exams now, no idea if they are gonna be good enough.

    But that doesn't matter, a dumpster diver gave me an entire free marzipan cake today!

  • What the fuck. I am 8 episodes in Kamen Rider 555 and it's actually good. I would like it more if it had some more mature themes but it's pretty good, especially for a child-targeted TV show. I think shows aimed at adults in my country are less well-written and directed than this one

  • Damn, that photo of Biden Trillbillies used. You could edit that into some gameplay of Silkbulb Test.

    Also I doubt I'll play Silkbulb Test, pretty sure that shit would scare my cat as he's peering over my shoulder.

  • In this current crisis, what society really needs is another novel political identity, which is why I am proud to announce that you can now read all about Transhumanist Firetruck Socialism on my substack

  • A letter from the IRS showed up in my mailbox today, can't see what's in it until Saturday cuz I'm away from the house. I genuinely have no clue if it's going to improve my finances or fuck them, honestly kinda wish I hadn't been told about it cuz now I'm all anxious and there's nothing I can do.

    • update: hmm okay I just got a picture of it and it looks like it's actually a treasury check, not an IRS letter, which is good.

      ...buuut the statue of liberty isn't facing in the same direction as all the treasury checks I see pictures of online. And the return address is some local bulk mailing company, and not a government address. Is someone trying to scam me, or is that normal? I don't get enough checks from the treasury to tell.

      agggh now it's making me annoyed in a totally different way.

      • Maybe going to a bank branch and talking to the teller could clear it up? They may have a better way of checking if it’s an actual treasury cheque since the security features are listed online and they probably have the UV thing there.

      • It’s very possibly a scam. Usually the way cheque scams work is you’ll get a call that it was an error and you MUST return the money, then they’ll place a stop payment on the cheque so you pay them and the cheque never clears.

243 comments