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Umami-Rich Steamed Pork Belly with Soy Sauce Koji & Ginger

  • Writer: Hitomi
    Hitomi
  • Nov 18
  • 2 min read

Steamed pork belly with onions in a bamboo steamer, set beside a bowl of mixed grains on a wooden table. Text overlays describe the dish.

CONTENTS



ABOUT THIS RECIPE |

This flavor-packed pork belly is marinated in soy sauce koji and ginger, then gently steamed in a seiro (bamboo steamer) for a juicy and tender finish. Wrapped in steamed cabbage, it’s a gut-friendly dish that feels indulgent but aligns perfectly with your wellness goals. ✨



RECIPE OVERVIEW |

  • Prep Time: 10 minutes (plus 12 hours marinating)

  • Cook Time: 10–15 minutes

  • Servings: 2–3

  • Cooking Method: Seiro steaming (or any steamer)

  • Dietary Notes: Gut-friendly, enzyme-rich, lower-sodium than traditional soy sauce–based dishes



NUTRITION & GUT HEALTH BENEFITS |

  • Pork is rich in vitamin B1 — supports metabolism, stress recovery, and energy production.Ginger & onion are natural prebiotics → help feed healthy gut bacteria.

  • Steaming keeps nutrients intact and is gentle on digestion.

  • Soy sauce koji contains enzymes that help break down proteins and improve nutrient absorption.


A delicious way to nourish your gut without sacrificing bold flavor. 🧡



INGREDIENTS (2 Servings) |

  • 500g (about 1.1 lb) pork belly slices

  • ½ onion, thinly sliced

  • Steamer-safe cabbage leaves for wrapping


Marinade

  • 2 Tbsp soy sauce koji

  • 2 Tbsp grated ginger

  • 2 Tbsp sake

  • 2 Tbsp mirin


INSTRUCTIONS |

  1. In a bowl, combine soy sauce koji, ginger, sake, and mirin.

  2. Place pork belly and sliced onion into a zip-top bag, then pour in the marinade.

  3. Massage gently and refrigerate for about 12 hours to allow flavors and enzymes to work their magic.

  4. Line a bamboo steamer (蒸籠) with cabbage leaves. Layer the marinated pork and onions on top.

  5. Set the steamer over a pot of boiling water.

  6. Steam for 10–15 minutes, until pork reaches an internal temp of 145°F+ (63°C).

  7. Serve and enjoy! You can wrap the pork and onions with softened cabbage leaves for a refreshing, satisfying bite.



WHY USE SOY SAUCE KOJI? |

Soy sauce koji provides umami depth while also offering:

  • Digestive enzymes

  • Natural probiotics

  • Less sodium, but richer flavor than regular soy sauce

  • A smoother, rounder taste thanks to the fermentation process


If you’re exploring cho-katsu cooking or transitioning to more fermented foods, soy sauce koji is a fantastic pantry upgrade!



FINAL THOUGHTS |

This Steamed Pork Belly with Soy Sauce Koji & Ginger is simple enough for a weeknight meal yet feels like a cozy Japanese home-style dish. Steaming + fermented seasoning = a perfect combo for gut wellness and incredible flavor. ✨

If you try this recipe, tag us @KojiandMore on Instagram so I can see your delicious creations! 💛


 Stay nourished, stay balanced — and keep enjoying every bite 🥢💫


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