The dressing in question is her Ginger-Miso Vinaigrette, which is the star of ... You'll Want to Make Forever I chose to stick to the recipe as-is. Here are the ingredients listed that I used ...

Pour 1 litre/1¾pints water into a medium wok and bring to the boil. Add the miso paste and ginger and cook on a medium heat for 5 minutes. Add the somen noodles, pak choy and all of the seafood.