Onigiri, or Japanese rice balls, are a beloved staple in Japanese cuisine. These delightful snacks are perfect for a quick meal, a picnic, or even a lunchbox treat. Simple yet versatile, onigiri can be enjoyed plain or filled with a variety of ingredients, making them a favorite for all ages.
When preparing onigiri, it's essential to use Japanese short-grain rice, as it has the right stickiness to hold the shape of the rice balls. Nori, or seaweed, is another key ingredient that might not be commonly found in every pantry. You can find these items in the Asian section of most supermarkets or at specialty Asian grocery stores.

Ingredients For Onigiri Japanese Rice Balls Recipe
Japanese short-grain rice: This type of rice is sticky and holds together well, making it ideal for shaping into rice balls.
Water: Used to cook the rice, ensuring it reaches the perfect consistency.
Salt: Adds flavor to the rice and helps in seasoning.
Nori: Seaweed sheets that are cut into strips and wrapped around the rice balls for added flavor and texture.
Technique Tip for Making Onigiri
When shaping the rice into triangles or balls, make sure to press firmly but gently to ensure the rice sticks together without becoming too compact. This will help maintain the onigiri's shape and texture. Additionally, keep a small bowl of water nearby to re-wet your hands as needed, preventing the rice from sticking to your fingers.
Suggested Side Dishes
Alternative Ingredients
japanese short-grain rice - Substitute with sushi rice: Sushi rice is also a type of short-grain rice that has a similar sticky texture, making it a good substitute for onigiri.
japanese short-grain rice - Substitute with arborio rice: Arborio rice, commonly used in risotto, has a similar starchy quality and can mimic the texture of Japanese short-grain rice.
water - Substitute with dashi: Using dashi, a Japanese stock, can add an extra layer of umami flavor to the rice.
salt - Substitute with soy sauce: Soy sauce can add both saltiness and a depth of flavor to the rice.
nori - Substitute with rice paper: Rice paper can be used to wrap the rice balls if nori is unavailable, though it will have a different texture.
nori - Substitute with shiso leaves: Shiso leaves can provide a unique flavor and serve as an alternative wrapping for the rice balls.
Alternative Recipes Similar to Onigiri
How to Store or Freeze Onigiri
- Allow the onigiri to cool completely before storing. This prevents condensation from forming, which can make the rice soggy.
- Wrap each rice ball individually in plastic wrap to maintain its shape and keep it fresh.
- Place the wrapped onigiri in an airtight container to further protect them from drying out or absorbing other odors from the fridge.
- Store the container in the refrigerator if you plan to consume the onigiri within 1-2 days. This keeps the rice fresh and the nori crisp.
- For longer storage, place the wrapped onigiri in a freezer-safe bag or container. Make sure to remove as much air as possible to prevent freezer burn.
- Label the container with the date to keep track of how long the onigiri has been stored.
- When ready to eat, thaw the onigiri in the refrigerator overnight or use the defrost setting on your microwave.
- To restore the texture, you can lightly steam the onigiri or microwave it with a damp paper towel to rehydrate the rice.
- If the nori becomes too soft, you can replace it with fresh strips just before serving for that perfect crunch.
How to Reheat Leftovers
Microwave Method:
- Place the onigiri on a microwave-safe plate.
- Cover with a damp paper towel to keep the rice moist.
- Heat on medium power for 1-2 minutes, checking halfway through to ensure even heating.
- Let it sit for a minute before enjoying.
Steaming Method:
- Place the onigiri in a steamer basket.
- Add water to the steamer pot and bring to a gentle boil.
- Steam the rice balls for about 5-7 minutes until heated through.
- Carefully remove and let cool slightly before serving.
Pan-Frying Method:
- Heat a non-stick pan over medium heat and add a bit of sesame oil or vegetable oil.
- Place the onigiri in the pan and cook for 2-3 minutes on each side until the exterior is crispy and golden.
- Remove from the pan and let cool slightly before enjoying.
Oven Method:
- Preheat the oven to 350°F (175°C).
- Wrap each onigiri in aluminum foil to prevent drying out.
- Place the wrapped rice balls on a baking sheet.
- Bake for 10-15 minutes until heated through.
- Carefully unwrap and let cool slightly before serving.
Essential Tools for Making Onigiri
Rice cooker: Used to cook the Japanese short-grain rice to the perfect texture.
Strainer: Essential for rinsing the rice under cold water until the water runs clear.
Mixing bowl: Useful for holding the rinsed rice before cooking.
Measuring cups: Necessary for accurately measuring the rice and water.
Wooden spoon: Ideal for fluffing the cooked rice and letting it cool slightly.
Cutting board: Handy for cutting the nori sheets into strips.
Sharp knife: Needed for cutting the nori sheets cleanly.
Small bowl: Used to hold water for wetting your hands while shaping the rice.
Salt shaker: Convenient for sprinkling salt on your wet hands.
Serving plate: Perfect for placing the finished onigiri before serving.
How to Save Time When Making Onigiri
Rinse rice efficiently: Use a fine-mesh strainer to rinse the rice quickly and thoroughly.
Use a rice cooker: A rice cooker ensures perfectly cooked rice without constant monitoring.
Cool rice faster: Spread the cooked rice on a baking sheet to cool it quickly.
Pre-cut nori: Buy pre-cut nori strips to save time on preparation.
Wet hands properly: Keep a bowl of water nearby to wet your hands easily while shaping the onigiri.
Batch preparation: Shape multiple rice balls at once to streamline the process.

Onigiri Japanese Rice Balls Recipe
Ingredients
Main Ingredients
- 2 cups Japanese short-grain rice
- 2.5 cups Water
- 1 teaspoon Salt
- 4 sheets Nori (seaweed) cut into strips
Instructions
- Rinse the rice under cold water until the water runs clear.
- Cook the rice in a rice cooker with 2.5 cups of water.
- Once cooked, let the rice cool slightly.
- Wet your hands with water and sprinkle with salt.
- Take a handful of rice and shape it into a triangle or ball.
- Wrap a strip of nori around the rice ball.
- Repeat with the remaining rice.
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