Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
     1/2  cup           rice vinegar
   1                    scallion -- minced
   1      teaspoon      low-sodium soy sauce
   1      teaspoon      minced fresh cilantro -- or more to taste
   1                    garlic clove -- minced
     1/2  teaspoon      brown sugar
     1/2  teaspoon      dark sesame oil
     1/2  teaspoon      minced ginger root
     1/4  teaspoon      red pepper flakes -- or to taste

Preparation:

Combine above ingredients in a glass jar and shake to blend completely. Sauce will keep for several days stored in a tightly covered jar in the refrigerator. Makes a generous 1/2 cup.