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    Home » Recipes » Rice

    "Okaka Onigiri" Bonito Flakes Rice Ball (おかかおにぎり)

    Published: Jan 11, 2021 · Modified: Sep 9, 2021 by Yuto Omura

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    Hey everyone, it’s Yuto here from (@sudachi.recipes) and today I’m going to show you how to make a classic and well loved rice ball recipe called "Okaka Onigiri".

    Okaka Onigiri Rice Ball with Bonito Flakes and Soy Sauce

    Disclaimer: This post contains Amazon affiliate links. Sudachi Recipes earn a small percentage from qualifying purchases at no extra cost to you. See disclaimer for more info.

    Onigiri

    What is Onigiri?

    Every country has their own go-to lunch box food, and for Japanese people, it's onigiri.

    Onigiri is a rice ball most commonly shaped into a triangle. (Although they can also be round or cylindrical.)

    Rice balls are super versatile and come in many different flavours. You can flavour the rice or add a tasty filling, it's totally up to you.

    Holding Okaka Onigiri

    Ideas for Onigiri Fillings

    We've got lots of onigiri recipes on our site, here are some of our favourites.

    • Salted Onigiri
    • Salmon and Spring Onion Onigiri
    • Tuna Mayo Onigiri
    • Soboro Chicken Mince Onigiri
    • Yaki Onigiri
    • Devil's Onigiri (with aonori and tenkasu)
    Okaka Onigiri Rice Ball Close Up

    Okaka

    What is Okaka?

    Okaka is a type of rice seasoning made from "katsuobushi", known as bonito flakes in English.

    The katsuobushi is seasoned with soy sauce or tsuyu to give it a salty and slightly sweet taste.

    I've also added white sesame seeds to my recipe for extra flavour. The nuttiness from the sesame seeds works really well in okaka!

    Okaka is always served on rice, so it's perfect for rice balls! Okaka onigiri is very popular, it's easy to find it in any convenience store in Japan.

    Okaka Rice Seasoning

    Katsuobushi

    Katsuobushi (鰹節) is the Japanese name for “bonito flakes”.

    Bonito flakes are made from skipjack tuna that has been dried, fermented and smoked. It is then shaved into very thin flakes.

    It has a fishy and smoky flavour. This recipe uses 15g (1¼ cups) of katsuobushi to make 4-6 rice balls, but you can increase or decrease the amount to suit your tastes.

    You can buy bonito flakes for Okaka on Amazon. (Affiliate link)

    Dishes with Katsuobushi

    If you're wondering whether it's worth buying katsuobushi and if you'll use it for other things, the answer is, of course! There are so many recipes that use katsuobushi and most importantly, you can use it to make dashi which is essential for creating umami in Japanese cooking. (Especially noodle broths!)

    awase dashi side view

    Here are some of our other recipes that require katsuobushi:

    • Awase Dashi (Bonito flake and dried kelp soup stock stock)
    • Tonjiru
    • Okonomiyaki
    • Takoyaki
    okonomiyaki

    Here you can see the katsuobushi sprinkled on top of the okonomiyaki. It's delicious!

    Watch our video "How to make Onigiri Rice Balls at Home" here

    Print
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    Okaka Onigiri Rice Ball Close Up

    "Okaka Onigiri" Bonito Flake Rice Ball (おかかおにぎり)


    • Author: Yuto Omura
    • Total Time: 15 minutes
    • Yield: 4-6 Onigiri 1x
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    Description

    How to make classic Okaka Onigiri (bonito flake rice ball)


    Ingredients

    Scale
    • 600g Cooked Rice (3 cups) (Cook 300g / 1¾ US cups of uncooked rice. See here how to cook Japanese rice on the stove)
    • 15g / 1¼ cups Katsuobushi (Bonito Flakes)
    • 3 tbsp Tsuyu Sauce (see how to make your own tsuyu here.)
    • 1 tbsp White Sesame Seeds

    Shaping

    • 1 bowl of ice cold water
    • 1 tbsp salt

    Instructions

    1. Add 15g (1¼ cups) of katsuobushi, 3 tbsp tsuyu sauce and 1 tbsp white sesame seeds to a large bowl and mix.
    2. Once all the liquid is absorbed, add 600g (3 cups) of cooked rice to the bowl.
    3. Mix well until all of the ingredients are spread evenly through the rice.
    4. Divide the rice into 4-6 portions (depending on how big you want the onigiri to be).
    5. Prepare a bowl of ice cold water and a small bowl with 1 tbsp salt.
    6. Wash your hands well and then submerge them into the bowl of icy cold water for about 15-20 seconds. This stops the rice sticking to your hands. (See note if you don't want to handle the rice)
    7. Rub 1-2 pinches of salt over the palms your hands. This not only adds the flavour to the rice ball, but also acts as a preservative whilst it’s in your lunchbox.
    8. Take a handful of the rice mixture and start to shape it in your palms, pressing the edges to form a triangle shape. If you press and turn, press and turn, press and turn, you should make a good firm triangle shape. (See our video on how to shape onigiri if you are unsure.)
    9. Don’t handle the rice for too long, quicker is better. Once you’re happy with the shape, wrap it with nori.
    10. Put your hands back in the icy water and repeat. This recipe makes 4-6 rice balls (depending on size).
    11. Eat straight away or put in your lunch box with an ice pack. They’re best eaten the same day.
    12. Enjoy!

    Notes

    If you don't like the idea of handling the rice too much with your bare hands, you can also put the rice into plastic wrap and shape it like that, just don't forget to salt the outside of the rice ball before or after shaping.

    If you want to make them for tomorrow's lunch you can wrap them in plastic wrap and store them in the fridge. To stop the rice from getting too hard over night, wrap the plastic wrapped rice ball once more in a towel or kitchen paper.

    Practice makes perfect but if you're having trouble, watch our youtube video or feel free to contact us!

    • Prep Time: 10 minutes
    • Cook Time: 5 minutes
    • Category: Rice
    • Method: Mixing
    • Cuisine: Japanese

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    « Lawson Style "Devil's Onigiri" Rice Ball Recipe (悪魔のおにぎり)
    Rich Sukiyaki Japanese Beef Hot Pot (すき焼き) »

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    Thanks for visiting Sudachi Recipes. My name is Yuto and I'm a Japanese guy with a passion for food. Here I share tasty and accessible recipes so that you can bring a taste of Japan to your own kitchen.

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