Process garlic, ginger, rice wine vinegar, soy sauce, and sesame oil
in a food processor until well combined. Add tahini and pulse until
dressing appears thick. At this point, I add oil in a thin stream
until dressing is emulsified. You can add water, 1 tb at a time if
the dressing is too thick.
Best served over raw spinach as a salad-but I have used on cooked
asparagus as well.