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Shoyu Koji–Marinated Pork Chashu

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Shoyu Koji Makes Every Bite Irresistibly Juicy
Made with nothing but Shoyu Koji, a fermented seasoning made with soy sauce and rice koji, this pork chashu develops a tender, juicy texture as it cooks. With a simple marinate-and-roast method, Shoyu Koji draws out the natural savoriness of the pork, resulting in a flavor that feels deeply comforting and full of flavor.
Ideal for pork chashu rice bowls or as a ramen topping, this recipe works well with your preferred cut of pork.
Recipe
marinated pork chashu
Prep Time 15 minutes
Cook Time 1 hour
Servings 2
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Ingredients

  • 9 oz(250g) Pork shoulder roast

【A】

  • 1/2 piece Ginger, grated
  • 1/2 clove Garlic, grated
  • 3 tbsp SHOYU KOJI

Nutrition Facts

Calories・25kcalCarbohydrates・2gProtein・4gFat・0.4gSaturated Fat・0.1gPolyunsaturated Fat・0.1gMonounsaturated Fat・0.2gCholesterol・3mgSodium・1512mgPotassium・83mgFiber・0.3gSugar・0.5gVitamin A・0.3IUVitamin C・0.4mgCalcium・8mgIron・1mg

Instructions

  • Preheat the oven to 180°C (350°F).
  • Pierce the pork all over with a fork to help the seasoning absorb. Combine the pork with all ingredients in [A] and marinate for about 30 minutes.
  • Heat a lightly oiled pan over medium heat and sear the pork until browned on all sides. The pork does not need to be cooked through at this stage.
  • Transfer the pork to the preheated oven and roast until fully cooked through at the center. Slice to your preferred thickness and serve.

Product used in this recipe

SHOYU-KOJI

Shoyu Koji
20.4 oz (580 g)

Our Shoyu Koji is a traditional Japanese condiment made by fermenting koji (rice inoculated with Aspergillus oryzae) with soy sauce to create a versatile liquid seasoning. It has the sharp, nutty aroma of soy sauce, but the flavor is more mellow with a mild sweetness and deep umami that enhances almost any dish. Koji’s natural enzymes help tenderize meat, poultry, and fish, so it makes a fantastic marinade. You can also add it to sauces, stews, stir-fries, and dressings for savory depth and a hint of sweetness.

Check out Shoyu Koji
20.4 oz (580 g)

Recipe Creator

Wakana

Recipe Creator

Wakana

Wakana joined Hikari Miso Co., Ltd. in 2025. Guided by the motto“Bringing happiness to people through food,”she applies her expertise as a registered dietitian to develop health-focused recipes. Passionate about miso as a traditional fermented food, she is dedicated to sharing its nutritional value and cultural heritage worldwide.

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