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Spicy Tuna Onigiri Recipe

4.6 from 99 reviews

This Spicy Tuna Onigiri recipe combines savory sushi rice with a creamy, spicy tuna filling and a tangy masago sauce, wrapped in crispy nori and coated with flavorful furikake seasoning. It is a quick and delicious Japanese-inspired snack or light meal, perfect for sushi lovers looking for an easy homemade option.

Ingredients

Scale

Masago Sauce

  • 1/2 cup Kewpie mayonnaise (or American mayonnaise)
  • 2 tablespoons masago
  • 1 tablespoon Sriracha
  • 1/2 lime, juiced

Filling

  • 8 ounces high quality raw tuna, minced
  • 3 tablespoons Kewpie mayonnaise (or American mayonnaise)
  • 1 1/2 tablespoons Sriracha
  • 1 tablespoon soy sauce

Rice and Assembly

  • 3 cups steamed short grain rice, warm
  • 2/3 cup furikake seasoning
  • 8 pieces nori, each 1.5″ x 3″

Instructions

  1. Prepare Masago Sauce: Place the mayonnaise, masago, sriracha, and lime juice into a mixing bowl and stir thoroughly until smooth and well combined. Set the sauce aside for later use.
  2. Make the Tuna Filling: In another bowl, combine the minced raw tuna, mayonnaise, sriracha, and soy sauce. Mix everything together until fully incorporated and the tuna is evenly coated with the sauce.
  3. Assemble Onigiri Base: Press about 1/4 cup of warm steamed rice firmly into the bottom of your onigiri mold to create the base layer.
  4. Add the Tuna Filling: Create a small tablespoon-sized indentation in the center of the rice base and fill it with a scoop of the prepared spicy tuna filling.
  5. Top and Shape the Onigiri: Cover the tuna filling with an additional 2 to 3 tablespoons of rice. Press firmly with the top of the onigiri mold to compact the rice and shape the onigiri into a triangle.
  6. Unmold and Wrap: Carefully remove the shaped onigiri from the mold and wrap one piece of nori around the bottom center of the triangle to hold its shape and add flavor.
  7. Coat with Furikake Seasoning: Press the sides of the onigiri gently into the furikake seasoning to coat them evenly, adding an extra layer of taste and texture.
  8. Repeat and Serve: Repeat the process with the remaining ingredients until all 8 onigiri are made. Serve immediately for best flavor and freshness.

Notes

  • Recipe Makes 8 Small Onigiri – Each serving size is 2 onigiri.
  • Use high quality sushi-grade tuna to ensure freshness and safety for raw consumption.
  • Keep the rice warm during assembly to help it stick together better.
  • Dampening your hands or the mold will help prevent the rice from sticking when shaping.
  • Feel free to adjust the Sriracha amount to control the spice level to your preference.
  • For extra flavor, you can add a small amount of pickled ginger or wasabi inside the filling.

Keywords: Spicy Tuna Onigiri, Japanese Snack, Sushi Rice Balls, Masago Sauce, Furikake, Tuna Filling, Easy Onigiri Recipe