Nikumaki Onigiri Recipe (Meat-Wrapped Rice Balls)
Nikumaki Onigiri is a delicious Japanese rice ball wrapped in thinly sliced beef and cooked with a sweet and savory soy sauce. While it’s still called onigiri, this hearty variation is much more substantial than traditional rice balls, which are typically wrapped in roasted seaweed. Combining tender meat, fluffy rice, and rich umami flavor, Nikumaki Onigiri makes a satisfying meal or snack any time of day.
What Is Nikumaki Onigiri?
Nikumaki Onigiri originated in Miyazaki Prefecture on Japan’s southern island of Kyushu in the late 1990s. It was first created as a staff meal at a specialty onigiri shop. Once it was added to the regular menu, however, customers quickly fell in love with it.
Its popularity spread throughout Miyazaki and soon across Japan. Today, many onigiri shops offer their own versions of Nikumaki Onigiri, often incorporating unique seasonings, sauces, or fillings to create distinctive flavors and styles.
Tips and Substitutions
- This recipe uses a simple sweet soy sauce glaze that complements the beef and rice without overpowering them. For a bolder flavor, add minced garlic, grated ginger, or a pinch of red pepper flakes to the sauce.
- Thinly sliced beef intended for shabu-shabu is used for this recipe, but thinly sliced pork is an excellent substitute and provides a slightly different flavor.
- For a richer and more indulgent version, stuff the rice balls with cheese before wrapping them in meat. The melted cheese creates a creamy center that pairs perfectly with the sweet-savory glaze.
- Because the sauce can be sticky, Nikumaki Onigiri is not always easy to eat by hand. Wrapping each rice ball in a lettuce leaf helps keep your hands clean while adding a fresh, crisp texture.
Short Video
Serving Suggestions
Nikumaki Onigiri is perfect for a weekend lunch, an easy weeknight dinner, or a packed lunch on the go. You can also make smaller, bite-sized versions and serve them as appetizers or party snacks.
Pair them with a simple salad, miso soup, or lightly pickled vegetables for a complete Japanese-inspired meal.
More Recipes Like Nikumaki Onigiri
- Garlic Yaki Onigiri
- Ajitama Onigiri (Ramen Egg Rice Balls)
- Salmon Onigiri
- Soy Tuna Mayo Onigiri
- Scrambled Egg Onigiri
The recipe was originally published on December 1, 2020. The post was fully updated on June 8, 2026 with revised text, new photos, and a short video.
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Ingredients
- 2 cups Steamed Rice
- 2 pinches salt
- 4-5 very thin slices of beef (enough to cover 4-5 Onigiri)
- 1 1/2 Tbsp Soy Sauce
- 1 Tbsp Sake
- 1 Tbsp Mirin
- 1 tsp sugar
- 1 Tbsp water
- 1 tsp oil
- sesame seeds
- lettuce leaves (optional)
Instructions
- Mix steamed rice with a couple of pinches of salt. Make a tight cylindrical ball 1/2 cup (or little less for smaller Onigiri) steamed rice, about three inches long. Repeat to make 4-5 rice balls. Wrap each rice ball with one paper thin slices of beef so that there is no rice exposed.
- In a small bowl, mix Soy Sauce, Sake, Mirin, sugar and water.
- Heat oil in a frying pan at medium heat, and cook wrapped rice balls until the beef is browned all around. Add sauce to the pan, coating the beef, and cook until almost all the liquid is gone.
- Sprinkle with sesame seeds and serve with lettuce leaves.
Where do I get these thin slices of beef?