Shio Kombu combines the umami of kombu with a mildly salty flavor, making it a delicious and savory condiment. It is not only a perfect accompaniment to rice but also a versatile seasoning for dishes such as stir-fries and salads.
2.7ozkombu (kelp), either soaked in water or leftover after making dashi stock(equivalent to about 0.53 oz/15 g of dried kombu before soaking or making dashi)
Seasonings:
1tspmirin
½tspsugar
1tsprice vinegar
1Tbspsoy sauce
Finishing touches:
1tspsalt(finely ground or powdered)
½tspsugar(finely ground or powdered)
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Instructions
Rinse the kombu under running water to reduce some of the sliminess (it won't come off completely). Cut the kombu into pieces less than 2 inches (5 cm) wide, then slice them into long, thin strips.
Combine the kombu and seasonings (mirin, sugar, rice vinegar, and soy sauce) in a pot. Cook over low heat, stirring occasionally to prevent burning, until almost all of the liquid has been absorbed.
Crumple a sheet of parchment paper and spread it out, then arrange the kombu on top without overlapping as much as possible. Bake it in the oven (or toaster oven) at 212℉ (100℃) for 30 minutes without preheating, until the kombu is semi-dry.
Remove the kombu from the oven and let it cool. Once cooled, place it in a plastic bag along with finely ground or powdered salt and sugar for the finishing touches, then shake or mix well. Leave it at room temperature for at least 8 hours to allow the flavors to blend.
Notes
You can keep it in an airtight container at room temperature for up to 2 weeks. Avoid storing it in the refrigerator, as it will absorb moisture.