
Onigiri, or rice balls, are one of the easiest ways to dabble in Japanese cooking. It’s almost as easy to make homemade onigiri as it is to buy from a store. The popularity of the simple rice ball is so great, there is even a store that sells one from each of the 47 prefectures.
In the RocketKitchen, our aim is to show you the best way to make fabulous Japanese dishes right in your own home. This time, we’re going to share with you foolproof way to create the best-tasting onigiri you’ve ever made. Hope you’ve got some rice cooking–it’s time to level-up that onigiri!
Trust us when we say this will be the best rice ball you will ever have. In fact, make the best onigiri you’ve ever made to compare it with. Or if you live in Japan, head over to the nearest convenience store. Go ahead, we’ll wait.
Back? Good. Introducing the sesame oil onigiri! All you need are two things, an onigiri and some sesame oil. Take an onigiri and follow these instructions:
Step 1- On one side of the onigiri, brush on some sesame oil.
FINISHED!
That’s right, that’s all you need to do. Yes, we know that sounds like a joke, but it’s unbelievable how a little bit of sesame oil changes your onigiri game and makes it taste exponentially better.
The best part about this “recipe” is how well it goes with every kind of onigiri filling. Your old standbys, like salmon, tarako (fish roe), mentaiko (fish roe with spiced red pepper), okaka (bonito), and tuna mayo will taste great. It even goes well with strong-flavored fillings like ikura (salted salmon roe) and umeboshi (sour plum)! Seriously, get yourself some sesame oil (known in Japan as “goma abura” if you need to ask for it) and give this a try – you won’t regret it!
▼Salmon filling!
▼Mentaiko filling (fish roe with spiced red pepper)
▼Takikomi rice (soy sauce and/or dashi seasoning)
The secret to the best ever onigiri is making sure you don’t spread too much sesame oil on there. It is possible to have too much of a good thing! Our kitchen found, through trial and error, covering only one side of the onigiri gave it the best flavor. Feel free to try a little experimentation yourself though.
For those of you who enjoy nori (dried seaweed) on their onigiri, we recommend that you brush the oil on the rice and not the nori, that way you can keep your hands clean. See? We take this food business seriously!
If you are hand-making the onigiri, meanwhile, try putting a bit of the oil on your hands as you shape the rice ball, that way you can get a nice coating all over it. But again, be careful that you don’t overpower the other flavors.
This might be the easiest recipe we’ve ever featured in the RocketKitchen, but don’t let the simplicity fool you, it still packs a great flavorful taste, and you’ll be sure to impress all your friends at your next Japanese potluck picnic.
Photos © RocketNews24
[ Read in Japanese ]









We follow Twitter recipe to cook “coffee rice”! 【RocketKitchen】
The nine best onigiri fillings as chosen by an American
RocketKitchen: A simple and delicious recipe for cooking tuna
Celebrate Halloween with our recipe for jack-o’-lantern nikuman steamed buns【RocketKitchen】
The 10 best types of onigiri rice balls to try in Japan【Survey】
Japanese trains in Sapporo might be better than those in Tokyo, thanks to one special feature
Japan’s best conveyor belt sushi restaurant of seven years ago has now, finally, come to Tokyo
Lawson convenience store at popular tourist site is one of the most unusual in Japan
Drink vending machines disappearing in Japan as number drops to lowest in 30 years
Studio Ghibli celebrates the magic of movie theaters with short video, Hayao Miyazaki illustration
Mister Donut wows matcha lovers in Japan with new Dora Matcha doughnuts
Howl’s Moving Castle’s scene-stealing dog is here to clean your home as a plushie mop
Mr. Sato discovers his inner beaver with a 16-inch chocolate “twig” at Tokyo Station
Haunted hospital near Mt Fuji re-opens after renovation at Fuji-Q Highland, and it’s terrifying
Pitch-black Black Belt udon noodles are a visual roundhouse, but do they taste good?【Taste test】
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Mt. Fuji decorated with a 500,000-flower pink carpet is Japan’s ultimate spring view
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
You can assemble a well-balanced team of Pokémon, them eat them, thanks to Japanese cake chain
30 Pikachus want to share a Tokyo hotel room with you that has separate Grass, Water, Fire spaces
Man bites woman at cherry blossom park in Japan, dies shortly after
7-Eleven Japan’s new baked-in-store sweet treat is only available in three parts of the country
Peanuts and Coke becomes a viral hit in Japan, but is it a trend worth joining?
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
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
Learn to love the taste of raw daikon with this simple recipe 【RocketKitchen】
Don’t throw away the bones! How to make Japanese Christmas KFC soup【RocketKitchen】
Eat your beans the doubly delicious way with this mushiyaki edamame recipe 【RocketKitchen】
Convenience store onigiri rice balls become even more expensive…but are they worth it?
We made world-famous French toast in our office, and so can you! 【RocketKitchen】
Nametake tuna rice: A delicious rice cooker recipe using just three ingredients【SoraKitchen】
What do Japanese People Put in Their Rice Balls? Top 22 Most Popular Onigiri Fillings!
We made Sailor Jupiter’s out-of-this-world bento, and you can too! 【RocketKitchen】
We substitute mirin for sugar in pudding and then taste it ourselves 【Rocket Kitchen】
How to make amazing sweet apple pancakes using a rice cooker 【RocketKitchen】
Monjayaki, the popular Tokyo dish you’ve probably never heard of 【RocketKitchen】
We turn Japanese bamboo shoot rice dish into a delectable dessert【RocketKitchen】
Camp eats: We try making an “Italian-style” meat-wrapped onigiri for a hearty meal【SoraKitchen】
We try making demi-glace sauce with catsup and chocolate【RocketKitchen】
Tokyo store serves stunning kakigori ice dessert that looks and tastes like an onigiri rice ball