Jul 14 2026
RestaurantsRamen KumamotoCharshu Onigiri Recipe

Charshu Onigiri Recipe

Inspired by Ramen Kumamoto
Time3h
Serves4

Seasoned rice ball with roast pork, wrapped with nori seaweed

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Ingredients

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For the Rice

For the Charshu (Roast Pork)

Method

For the Rice

  1. 1

    Rinse and Cook the Rice

    Rinse the sushi rice under cold water until the water runs clear. Drain well. In a rice cooker or pot, combine the rinsed rice and water. Cook according to rice cooker instructions or bring to a boil, reduce heat to low, cover, and simmer for 18-20 minutes. Remove from heat and let it sit covered for 10 minutes.

  2. 2

    Season the Rice

    In a small saucepan, combine rice vinegar, sugar, and salt. Heat over low heat until sugar dissolves. Transfer the cooked rice to a large bowl and gently fold in the vinegar mixture. Allow the rice to cool to room temperature.

For the Charshu (Roast Pork)

  1. 3

    Prepare the Marinade

    In a bowl, mix together soy sauce, mirin, sake, sugar, minced garlic, sliced ginger, and chopped green onions.

  2. 4

    Marinate the Pork

    Place the pork belly in a large resealable bag or dish and pour the marinade over it. Seal the bag or cover the dish and refrigerate for at least 4 hours, preferably overnight.

  3. 5

    Cook the Pork

    Preheat your oven to 300°F (150°C). Place the marinated pork belly in a roasting pan, cover with foil, and roast for 2-3 hours until tender. Remove from oven, let it cool slightly, and then slice into thin pieces.

For Assembly

  1. 6

    Form the Onigiri

    Wet your hands with water to prevent sticking. Take a handful of seasoned rice and flatten it in your palm. Place a slice of charshu in the center and mold the rice around it to form a ball or triangle shape.

  2. 7

    Wrap with Nori

    Cut nori sheets into strips or quarters. Wrap a strip of nori around each rice ball, leaving one side open. Sprinkle with toasted sesame seeds.

  3. 8

    Serve

    Serve the charshu onigiri with pickled ginger on the side. Enjoy!

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