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Spicy Tuna Onigiri

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Spicy Tuna Onigiri is a delicious and satisfying Japanese rice ball filled with a creamy, spicy tuna mixture. Wrapped in a sheet of crispy nori, these handheld snacks are perfect for a quick meal, lunchbox treat, or on-the-go bite. The combination of fluffy rice, spicy tuna, and umami-rich seaweed creates an irresistible balance of flavors and textures. Whether you’re new to onigiri or a seasoned fan, this recipe is easy to follow and packed with bold flavors.

Ingredients

Scale
  • 2 cups cooked Japanese short-grain rice (warm)
  • 1 can (5 oz) tuna, drained
  • 3 tablespoons Japanese mayonnaise (Kewpie recommended)
  • 1–2 teaspoons sriracha (adjust to taste)
  • 1 teaspoon soy sauce
  • ½ teaspoon sesame oil
  • 1 teaspoon lemon juice (optional)
  • ½ teaspoon sugar (optional, for balance)
  • 1 tablespoon finely chopped green onions (optional)
  • 1 teaspoon toasted sesame seeds (optional)
  • 6 sheets nori (seaweed), cut into strips
  • Salt, for seasoning the rice
  • Water, for shaping the onigiri

Ingredient Highlights

  • Japanese Short-Grain Rice: The key to perfectly shaped onigiri is using short-grain rice, which is naturally sticky and holds its shape well.
  • Tuna: A high-protein filling that pairs well with the creamy and spicy flavors of the sauce.
  • Japanese Mayonnaise: Kewpie mayo is richer and creamier than regular mayo, enhancing the overall taste.
  • Sriracha: Adds a spicy kick—adjust the amount to your spice preference.
  • Soy Sauce & Sesame Oil: These ingredients add depth and umami to the filling.
  • Nori (Seaweed): Provides a slightly salty, crispy texture that complements the soft rice.

Instructions

Prepare the Spicy Tuna Filling

  1. Drain the Tuna: Place the canned tuna in a small bowl and use a fork to break it into smaller flakes.
  2. Mix the Filling: Add Japanese mayonnaise, sriracha, soy sauce, sesame oil, lemon juice (if using), and sugar (if using). Stir until well combined.
  3. Add Extra Flavor: Mix in chopped green onions and toasted sesame seeds for added texture and taste. Set the filling aside.

Prepare the Rice and Shape the Onigiri

  1. Season the Rice: While the rice is still warm, sprinkle with a pinch of salt and mix gently.
  2. Wet Your Hands: Fill a small bowl with water and another with salt. Wet your hands with water to prevent sticking, then rub a little salt on your palms.
  3. Shape the Onigiri: Take about ½ cup of rice and flatten it into a disk in your palm. Place a spoonful of spicy tuna filling in the center.
  4. Seal and Form: Carefully fold the rice around the filling, shaping it into a triangle or round ball. Gently press the rice together without squeezing too hard.
  5. Wrap with Nori: Place a strip of nori on the bottom of the onigiri, wrapping it around for easy handling.

Nutrition

Find it online: https://herbites.com/spicy-tuna-onigiri/