1/2 cup soy sauce
1/2 cup mirin
1/2 cup freshly squeezed lemon juice
1/4 cup Asian sesame oil
3 tablespoons grated fresh ginger
1 tablespoon grated lemon zest
Combine soy sauce, mirin, lemon juice, sesame oil, ginger, and lemon zest in a jar with a tight-fitting lid. Shake well, and refrigerate until ready to use.
Note: The sauce can be refrigerated up to 1 week.