Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      tablespoon    garlic -- finely chopped
   2      tablespoons   brown bean paste
     1/4  cup           ginger -- finely chopped
   1                    serrano chili -- stemmed &
                        finely chopped
   2      tablespoons   white vinegar
   1      tablespoon    sugar
   1      tablespoon    soy sauce
   3                    cilantro sprigs -- chopped

Preparation:

Mix all ingredients thoroughly. Use immediately or at least within 6 hours of preparation as the flavours will get stronger the longer the sauce sits. This thick, dark, rich and spicy sauce goes well with as a dipping sauce with bland foods such as tofu. William Crawford and Kamolmal Pootaraksa, "Thai Home-Cooking"