Recipe Tuna Mayonnaise Onigiri

Onigiri is one of Japan's traditional and popular foods, known for its simplicity and versatility. The combination of rice and various fillings makes it a favourite choice for snacks or packed lunches. One intriguing variation of onigiri that captures attention is Tuna Mayonnaise Onigiri. The blend of tender tuna with rich mayonnaise provides a delightful sensation with every bite.


  • 2 cups of cooked Japanese rice
  • 1 can of tuna, preferably in water or oil
  • 3 tablespoons of mayonnaise
  • 1 teaspoon of soy sauce
  • 1 teaspoon of salt
  • 4 sheets of roasted seaweed (nori), cut into small rectangles
  • Sesame oil (optional)
  • Toasted sesame seeds for garnish (optional)


  1. In a large bowl, mix the cooked rice with soy sauce until well combined.
  2. Drain the water or oil from the tuna can, then mix the tuna with mayonnaise and salt until evenly distributed.
  3. Take a portion of rice and flatten it on your palm, which has been lightly moistened with water. Add a tablespoon of tuna mayonnaise mixture in the centre.
  4. Shape the rice into a ball or triangle, depending on your preference.
  5. Wrap the onigiri with a sheet of roasted seaweed, ensuring that it covers the entire surface of the rice.
  6. Repeat the process until all the rice is used.
  7. If desired, brush a little sesame oil on the outside of the seaweed and sprinkle with toasted sesame seeds for extra flavour and texture.
  8. Tuna Mayonnaise Onigiri is ready to be served.


  • Ensure the rice is still warm when shaping the onigiri for easier moulding.
  • Use moistened hands when shaping the onigiri to prevent the rice from sticking.
  • Adjust the ratio of tuna and mayonnaise according to your preference to achieve the desired texture and taste.


  • Add slices of avocado or cucumber inside the onigiri for a refreshing variation of taste and texture.
  • Mix in chopped wakame or nori into the tuna mayonnaise mixture for a distinctive oceanic flavour.
  • Substitute roasted seaweed with sesame seeds, chilli powder, or nori flakes for diverse and appealing presentations.

Nutritional Information (per onigiri):

  • Calories: Approximately 150-200 calories depending on size and filling.


Tuna Mayonnaise Onigiri is a delicious and convenient snack with its chewy rice and savoury tuna mayonnaise filling. With a simple recipe and readily available ingredients, you can enjoy an authentic Japanese dish at home. Get creative with your onigiri by experimenting with different fillings and presentations for a more diverse and exciting culinary experience. Enjoy your culinary adventure!


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