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Spicy Tuna Onigiri

Quick & Easy Spicy Tuna Onigiri


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  • Author: Olivia Hartwellen
  • Total Time: 20 minutes
  • Yield: 4 pieces 1x

Description

Quick & Easy Spicy Tuna Onigiri is a fun, flavorful twist on Japanese rice balls. Tender, seasoned short-grain rice is filled with creamy tuna mayo spiked with sriracha for a kick, then shaped into portable triangles wrapped in nori. Perfect for lunches, picnics, road trips, or a cozy snack, these onigiri are fast to make (just 20 minutes) and endlessly customizable.


Ingredients

Scale

For the Rice:

  • 3 cups cooked short-grain rice (about 675 g)

  • 1/2 sheet nori (cut into strips) or 2 full sheets for extra wrapping

  • 1/2 tsp salt (3 g)

  • 1/2 tsp black or toasted sesame seeds (optional, 2 g)

  • Water (for moistening rice paddle)

Spicy Tuna Filling:

  • 5.29 oz canned tuna in oil (150 g, drained well)

  • 2 tbsp mayonnaise (30 g)

  • 1 tbsp sriracha sauce or other hot sauce (15 ml)


Instructions

  • Transfer cooked rice to a large bowl, season with salt, and mix well. Keep covered and warm.

  • Drain tuna thoroughly, pressing out extra liquid. Mix tuna with mayonnaise and sriracha until smooth.

  • Lay a 15 x 15 in (38 x 38 cm) piece of plastic wrap on a flat surface. Moisten your rice paddle with water and divide rice into 4 equal portions.

  • Place 3/4 cup rice (about 170 g) onto the wrap, spreading into a circle about 1.25 cm thick.

  • Add a spoonful of tuna filling to the center. Lift plastic wrap corners and shape rice around filling into a ball.

  • Gently flatten into a triangle about 4.5 cm thick. Wrap a strip of nori around the base (rough side facing rice). Garnish with sesame seeds if desired.

  • Serve warm or wrap tightly for later.

Notes

Keep hands damp when shaping rice to prevent sticking.

Use short-grain rice for the best texture and hold.

Adjust sriracha to taste for more or less heat.

If storing, keep nori separate until serving to maintain crispness.

  • Prep Time: 20 minutes
  • Cook Time: 0minutes
  • Category: Snack / Appetizer
  • Method: No-Cook Assembly
  • Cuisine: Japanese