3
Heat the sesame oil in a large pot over medium heat until shimmering. Add the garlic and ginger, and cook for a few minutes until softened. Add the remaining soy sauce and mirin, stir to combine, and cook for another minute. Add the chicken stock, miso paste and whisk until completely mixed. Cover, and bring to a boil. Remove the lid, and let simmer uncovered for 5 minutes, then add the dried mushrooms, dashi and sea salt. Simmer gently for another 10 minutes.