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Japanese Onigiri (Rice Balls)

Japanese Onigiri (Rice Balls)

20 min — Medium — Asian

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Japanese Onigiri (Rice Balls)
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Japanese Onigiri (Rice Balls)

Soft, sticky short-grain rice gives way to a savory, salty center in these classic Japanese rice balls. You'll wrap them in crisp nori for a portable bite that's deeply satisfying. This version features two distinct fillings, pairing soy-seasoned bonito flakes with fresh tomatoes. They're a brilliant way to use up leftover cooked rice and pack beautifully for your midday meal.

Prep
20 min
Total
20 min
Servings
4
Course
Appetizer
Cuisine
Asian
🧑‍🍳
Difficulty
Medium
💰
Cost
Budget
🌶️
Spice
Mild

Equipment

  • Stovetop

Ingredients

  • ¼ cup bonito flakes
  • 2 teaspoons soy sauce
  • 1 fresh tomato, or 1 of Sasuke’s Soy-Pickled Tomatoes
  • 2 sheets nori
  • 4 cups freshly cooked Japanese short-grain rice
  • 2 tablespoons sesame seeds, toasted
  • 4 cups freshly cooked rice
  • 4 tablespoons onigiri filling (bonito flakes, leftover dashi furikake, etc.)
  • 4 sheets nori, cut into strips

Instructions

  1. 1Mix the bonito flakes with the soy sauce in a small bowl to create the okaka filling.
  2. 2Cut the tomato into quarters, scoop out the wet pulp, and chop the remaining flesh into fine pieces. Removing the pulp prevents the rice from getting soggy.
  3. 3Pass the nori sheets briefly over a low gas flame until they darken in color, then cut them into eight equal squares.
  4. 4Wet your hands with salted water and flatten half a cup of cooked rice in your palm. Create a small well in the center and add a portion of the okaka or chopped tomato. The salted water keeps the rice from sticking and seasons the exterior.
  5. 5Fold the rice over the filling to enclose it completely, pressing firmly to form a tight ball or a flattened triangle.
  6. 6Sprinkle toasted sesame seeds over the shaped rice, set it onto a nori square, and press the seaweed gently so it sticks to the surface.
  7. 7Repeat the process with the remaining ingredients, moistening your hands before shaping each one. Let the rice balls rest briefly before serving at room temperature.
  8. 8For a fully wrapped round style, roll the filled rice gently between your palms to form a smooth sphere. Wrap strips of nori around the sphere, dabbing them with a tiny drop of water to help the seaweed bend and adhere, until the entire surface is covered.

Notes

  • Rice: Use freshly cooked Japanese short-grain rice. It provides the necessary stickiness to hold the shape properly.
  • Storage: Wrap individual rice balls tightly in plastic wrap and store at room temperature if eating the same day. Don't refrigerate, or the rice will become hard.
  • Make ahead: You can prepare the okaka and tomato fillings up to a day in advance and store them in the fridge.

About the Author

Nora Visser, Editor at OneTapRecipes
Nora Visser
Editor, OneTapRecipes
Home cook writing recipes you can see, not read.