The Thai Chili Dipping Sauce referenced in this recipe is available in the Asian aisle of nearly every grocery store in the United States and is a critical element of this recipe. Just be sure that what you get has a smooth, liquid texture and says that it is sweet and spicy. It should look just like the contents in the bottle shown above (in Thailand they tend to label it “dipping sauce for chicken”). I do not find this to be overwhelmingly spicy, but adjust the measurements to your taste.