Miso Dressing
Makes a little over 1 cup of dressing
 
1/4 cup mellow white miso
2 tablespoons brown rice vinegar
2 tablespoons toasted sesame oil
2 tablespoons tamari low sodium soy sauce
2 tablespoons mirin cooking wine
1 teaspoon agave nectar or brown rice syrup
2 tablespoons grape seed or canola oil
1/4 cup sweet onion, finely chopped (optional)
  sea salt
  freshly ground black pepper
 
Combine all of the ingredients except the onion, salt and pepper in the bowl of a food processor fitted with a metal blade or a blender. Process the ingredients until smooth. While the machine is running, slowly add the oil and blend well. Season with salt and pepper to taste if necessary.
Stir in the prepared onion.
Use immediately or keep refrigerated for up to a week.