I remember my first Spicy Tuna Onigiri at a small Japanese restaurant. The flavors were amazing. Now, you can make it at home.
Making onigiri is easy. You need sushi rice, tuna with spicy mayo, and a few tools.

This onigiri recipe is versatile and simple. You can adjust it to your liking. It’s great for a quick snack or a meal.
Key Takeaways
- Simple ingredients for a delicious snack
- Easy-to-follow instructions for making onigiri
- Customizable to suit your taste preferences
- Perfect for a quick snack or as part of a meal
- Great for those new to Japanese cuisine
What Are Spicy Tuna Onigiri?
Spicy Tuna Onigiri are Japanese rice balls filled with spicy tuna. They are loved worldwide for their unique taste and ease of eating.

Onigiri have a long history in Japan, dating back centuries. They were a simple meal for travelers and workers.
The Cultural Significance of Onigiri in Japan
Onigiri have been a key part of Japanese food for centuries. They are often filled with pickled plum, salmon, or tuna. Their simplicity and versatility make them a favorite in Japan.
Why Spicy Tuna Filling Has Become So Popular
The spicy tuna filling is loved for its bold flavors and spicy kick. It’s made with tuna, mayonnaise, and chili peppers. This mix creates a taste that people can’t get enough of. The mix of traditional Japanese food with new flavors makes Spicy Tuna Onigiri so popular.
Essential Ingredients for Perfect Spicy Tuna Onigiri
Making the perfect Spicy Tuna Onigiri begins with picking the right ingredients. The quality and freshness of these components are key to a true Japanese dish.
Rice Selection and Preparation
The base of Spicy Tuna Onigiri is Japanese short-grain rice, or sushi rice. This rice is stickier, perfect for onigiri. To get it right, season it with rice vinegar, sugar, and salt.
Spicy Tuna Filling Components
The spicy tuna filling is vital for Spicy Tuna Onigiri. It includes sashimi-grade tuna, mayonnaise, and chili sauce or sriracha. Some recipes add soy sauce or sesame oil for extra flavor. Fresh, high-quality tuna is essential for great taste and safety.

Optional Garnishes and Seasonings
To boost the taste and look of Spicy Tuna Onigiri, add garnishes and seasonings. Try toasted sesame seeds, chopped green onions, and furikake. Some like a bit of soy sauce or wasabi on the side.
With careful selection and preparation of these ingredients, you can make authentic and tasty Spicy Tuna Onigiri. It truly captures the spirit of Japanese cuisine.
Equipment Needed for Making Onigiri
Making onigiri needs specific equipment for onigiri for the right shape and texture. While you can make them by hand, the right tools make it easier and more fun.
To start, choose between traditional and modern onigiri molds.
Traditional vs. Modern Onigiri Molds
Traditional molds are made from wood or bamboo, giving a charming, authentic touch. Modern molds, made from plastic or silicone, are easier to use. Your choice depends on what you prefer.
Basic Kitchen Tools You’ll Need
You’ll also need basic kitchen tools for the onigiri recipe. These include a rice cooker or pot, a cutting board, a sharp knife, and a bowl for the spicy tuna filling. Having these tools ready makes preparing and shaping your onigiri easier.
Step-by-Step Spicy Tuna Onigiri Recipe
To make tasty Spicy Tuna Onigiri, you need to prepare sushi rice, make a spicy tuna mix, and shape the onigiri. You’ll need basic ingredients and simple steps. But the result is worth the effort.
Preparing the Sushi Rice
Great Spicy Tuna Onigiri starts with perfect sushi rice. First, rinse the rice well until the water is clear. Then, cook it as the package says. Mix the cooked rice with rice vinegar, sugar, and salt for sushi flavor. Let it cool down before you go on.
Making the Spicy Tuna Mixture
The spicy tuna mix is key for Spicy Tuna Onigiri. You’ll need canned tuna, mayonnaise, sriracha sauce, and soy sauce. Mix these in a bowl until they’re mixed well. You can make it spicier by adding more sriracha.
Shaping the Onigiri
Now, the rice and tuna mix are ready. Wet your hands to stop the rice from sticking. Take a handful of rice and make a hole in the middle. Put some tuna mix in the hole, then fold the rice over it. Shape it into a triangle or oval, pressing gently to keep it in shape.
Onigiri Shape | Description | Tips |
---|---|---|
Triangle | A classic onigiri shape, easy to make and visually appealing. | Apply gentle pressure to ensure the onigiri holds its shape. |
Oval | A simple and elegant shape, great for beginners. | Make sure the rice is evenly distributed around the filling. |
Wrapping with Nori
The last step is to wrap the onigiri with nori seaweed. Cut nori sheets to fit your onigiri. Place the onigiri on the nori and wrap it around, pressing gently. Your Spicy Tuna Onigiri are now ready to eat.
By following these steps, you can make delicious Spicy Tuna Onigiri at home. Try different fillings and seasonings to make it your own.
Tips and Tricks for Perfect Spicy Tuna Onigiri
Making perfect Spicy Tuna Onigiri is more than just a recipe. It takes skill and practice. Here are some tips to help you make this tasty Japanese snack.
Achieving the Right Rice Texture
The rice texture is key for great Onigiri. Japanese short-grain rice is best because it’s stickier. To get the right texture, cook the rice with the right water amount. Don’t overmix it after cooking.
A rice vinegar seasoning can also help with flavor and texture.
Balancing Spice Levels
The spicy tuna filling is essential for Spicy Tuna Onigiri. Start with a small amount of wasabi or chili flakes and adjust to taste. It’s easier to add more heat than to take it away.
Storage and Freshness Guidelines
To keep your Spicy Tuna Onigiri fresh, store them in an airtight container in the fridge. It’s best to eat them within a day. The rice can dry out and the filling can lose flavor over time.
If you need to store them longer, wrap them in plastic wrap first.
Storage Method | Duration | Tips |
---|---|---|
Airtight Container | Up to 1 day | Keep in refrigerator |
Individual Wrapping | Up to 2 days | Use plastic wrap |
By following these tips, you can make perfect Spicy Tuna Onigiri. They’ll be delicious and look great. Try different spice levels and storage methods to find what works best for you.
Conclusion
I’ve shared with you how to make Spicy Tuna Onigiri, a tasty Japanese snack. It’s easy and fun to make. You can enjoy delicious rice balls at any time.
By following the steps, you’ll love the spicy tuna and Japanese rice mix. It’s all wrapped in crispy nori seaweed. This snack is not just tasty but also a way to try Japanese food.
Now you know how to make this snack. I encourage you to try it and enjoy making Spicy Tuna Onigiri. Look for more Japanese recipes and start your culinary adventure!
FAQ
What is the best type of rice to use for Spicy Tuna Onigiri?
Short-grain Japanese rice, also known as japonica rice, is the best choice. It’s stickier and holds together better than long-grain rice. This makes it perfect for shaping into onigiri.
Can I use canned tuna for the spicy tuna filling?
Canned tuna can work, but fresh, sashimi-grade tuna is better for flavor and texture. If using canned tuna, drain the liquid and mix well with other ingredients.
How spicy should the spicy tuna filling be?
The spiciness level is up to you. Adjust the chili sauce or red pepper flakes to your liking. For a milder taste, start with a small amount and add more as needed.
Can I make Spicy Tuna Onigiri ahead of time?
Yes, you can make them ahead of time. But for the best taste, eat them within a day or two. Store them in an airtight container in the fridge. Let them come to room temperature before serving.
How do I prevent the onigiri from falling apart?
To keep the onigiri together, handle the rice gently and shape it firmly. Wetting your hands with water before shaping helps the rice stick better.
Can I customize the Spicy Tuna Onigiri recipe with other ingredients?
Absolutely! You can add ingredients like diced avocado or cucumber to the filling. Or try different seasonings. Feel free to experiment and make it your own.
Spicy Tuna Onigiri: Easy Recipe for Savory Japanese Rice Balls
Course: Japanese recipe ideas, Snack / Lunch / Japanese Street FoodCuisine: JapaneseDifficulty: Medium6 onigiri
servings20
minutes30
minutes180
kcal50
minutesMy easy recipe for homemade Spicy Tuna Onigiri, the savory Japanese rice ball snack you’ll love.
Ingredients
2 cups Japanese short-grain rice (cooked and cooled slightly)
1 can (5 oz) tuna in water or oil, drained
2–3 tbsp mayonnaise (Japanese mayo preferred, like Kewpie)
1–2 tsp Sriracha (adjust spice level)
1 tsp soy sauce
1 tsp sesame oil (optional for flavor)
Salt, to taste
2–3 sheets nori (seaweed), cut into strips or rectangles
Sesame seeds (optional, for garnish)
Directions
- Cook the rice**: Prepare Japanese short-grain rice according to package instructions. Let it cool slightly until warm but not hot.
- Make the filling**: In a bowl, mix drained tuna with mayonnaise, Sriracha, soy sauce, and sesame oil. Taste and adjust seasoning.
- Shape the rice**: Wet your hands with water and sprinkle with salt to prevent sticking. Take a handful of rice and flatten slightly in your palm.
- Add filling**: Place about 1 tablespoon of the spicy tuna mixture in the center. Cover with another layer of rice and gently shape into a triangle or ball. Press firmly so it holds together.
- Wrap with nori**: Place a strip of nori around the bottom or fully wrap it, depending on preference.
- Garnish (optional)**: Sprinkle with sesame seeds for extra flavor.
- Serve immediately** or wrap in plastic wrap for later (best eaten within the day).
Notes
- Portable and fun to eat
* Customizable with fillings and spice level
* Great for meal prep, bento boxes, or snacks - Needs Japanese rice (other rice won’t stick as well)
* Best eaten fresh (nori can get soggy if stored too long)