Onigiri, or Japanese rice balls, are a delightful and versatile snack that can be enjoyed at any time of the day. These simple yet flavorful treats are a staple in Japanese cuisine, often found in bento boxes or served as a quick meal on the go. With just a few ingredients, you can create these delicious rice balls at home.
When preparing this recipe, you might need to visit a specialty store or the international aisle of your supermarket for a few key ingredients. Japanese short-grain rice is essential for the right texture and stickiness. Nori (seaweed) sheets are used to wrap the rice balls, adding a unique flavor and texture. If you choose to use sesame seeds, they can usually be found in the spice section.

Ingredients For Onigiri Japanese Rice Balls Recipe
Japanese short-grain rice: This type of rice is sticky and perfect for forming rice balls.
Water: Used to cook the rice.
Salt: Adds flavor to the rice and helps in shaping the rice balls.
Nori: Seaweed sheets cut into strips to wrap around the rice balls.
Sesame seeds: Optional, adds a nutty flavor and a bit of crunch.
Technique Tip for Making Onigiri
When shaping your onigiri, make sure your hands are slightly damp and sprinkled with salt. This prevents the rice from sticking to your hands and adds a subtle seasoning to the rice balls. Additionally, pressing the rice gently but firmly helps maintain the shape without crushing the grains, ensuring a perfect texture.
Suggested Side Dishes
Alternative Ingredients
japanese short-grain rice - Substitute with sushi rice: Sushi rice is also a type of short-grain rice and has a similar sticky texture when cooked, making it a good substitute for onigiri.
japanese short-grain rice - Substitute with arborio rice: Arborio rice, commonly used in risotto, has a similar sticky and creamy texture, which can work in a pinch for onigiri.
water - Substitute with dashi broth: Using dashi broth instead of water can add a deeper umami flavor to the rice, enhancing the overall taste of the onigiri.
salt - Substitute with soy sauce: Soy sauce can be used to season the rice, providing a salty and umami-rich flavor that complements the onigiri.
nori (seaweed) - Substitute with rice paper: Rice paper can be used as a wrap for the onigiri if nori is unavailable, though it will have a different texture and flavor.
nori (seaweed) - Substitute with shiso leaves: Shiso leaves can be used to wrap the onigiri, offering a unique and aromatic flavor profile.
sesame seeds - Substitute with furikake: Furikake is a Japanese seasoning that often includes sesame seeds along with other ingredients like seaweed and dried fish, adding more complexity to the flavor.
sesame seeds - Substitute with crushed peanuts: Crushed peanuts can provide a similar crunchy texture and nutty flavor, though the taste will be slightly different.
Alternative Recipes Similar to Onigiri
How to Store or Freeze Onigiri
- Allow the rice balls to cool completely before storing. This prevents condensation, which can make the nori soggy.
- Wrap each onigiri individually in plastic wrap to maintain freshness and prevent them from sticking together.
- Place the wrapped onigiri in an airtight container to further protect them from drying out and absorbing other odors from the fridge.
- Store the container in the refrigerator if you plan to consume the onigiri within 1-2 days. For longer storage, freezing is recommended.
- To freeze, place the wrapped onigiri in a single layer on a baking sheet and freeze until solid. This prevents them from sticking together.
- Once frozen, transfer the onigiri to a freezer-safe bag or container. Label with the date to keep track of freshness.
- When ready to eat, thaw the onigiri in the refrigerator overnight or reheat directly from frozen in the microwave. If microwaving, remove the plastic wrap and cover with a damp paper towel to retain moisture.
- For best texture, avoid reheating the nori with the onigiri. Instead, wrap the nori around the rice ball just before serving.
How to Reheat Leftovers
Microwave method:
- Place the onigiri on a microwave-safe plate.
- Cover with a damp paper towel to prevent drying out.
- Microwave on medium power for 1-2 minutes, checking halfway through.
- Let it sit for a minute to evenly distribute the heat.
Steaming method:
- Set up a steamer with boiling water.
- Place the onigiri in the steamer basket, ensuring they don't touch the water.
- Steam 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 small amount of sesame oil.
- Place the onigiri in the pan and cook for 2-3 minutes on each side until crispy and heated through.
- 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 retain moisture.
- Place on a baking sheet and heat for 10-15 minutes.
- Carefully unwrap and let cool slightly before serving.
Essential Tools for Making Onigiri
Rice cooker: Essential for cooking the Japanese short-grain rice to the perfect texture.
Measuring cups: Used to measure the rice and water accurately.
Strainer: Needed to rinse the rice under cold water until the water runs clear.
Mixing bowl: Useful for holding the rinsed rice before cooking.
Wooden spoon: Ideal for fluffing the rice once it's cooked.
Cutting board: Handy for cutting the nori into strips.
Sharp knife: Necessary for slicing the nori sheet.
Small bowl: Used to hold water for wetting your hands.
Salt shaker: Convenient for sprinkling salt on your wet hands.
Serving plate: Perfect for placing the finished onigiri.
Sesame seed shaker: Optional, for sprinkling sesame seeds on the onigiri.
How to Save Time When Making Onigiri
Rinse efficiently: Use a fine-mesh strainer to rinse the rice quickly and thoroughly.
Cook in bulk: Prepare extra rice and store it in the fridge for quick assembly later.
Use a mold: Invest in an onigiri mold to shape the rice balls faster and more uniformly.
Pre-cut nori: Cut the nori strips in advance and store them in an airtight container.
Wet hands properly: Keep a bowl of salted water nearby to quickly wet your hands while shaping the rice balls.
Prepare toppings: Have your sesame seeds and other toppings ready to sprinkle immediately.

Onigiri Japanese Rice Balls Recipe
Ingredients
Main Ingredients
- 2 cups Japanese short-grain rice
- 2.5 cups Water
- 1 teaspoon Salt
- 1 sheet Nori (seaweed) cut into strips
- 1 tablespoon Sesame seeds optional
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.
- Optional: Sprinkle with sesame seeds.
Nutritional Value
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