Nước chấm
Nước chấm, or more specifically, nước mắm chấm is a common name for a variety of Vietnamese dipping sauces that are served quite frequently as condiments. It is commonly a sweet, sour, salty, savoury and/or spicy sauce. Nước mắm pha (mixed fish sauce) is the most well known dipping sauce made from fish sauce. Its simplest recipe is some lime juice, or occasionally vinegar, one part fish sauce (nước mắm), one part sugar and two parts water. Vegetarians create nước chấm chay (vegetarian dipping sauce) or nước tương (soy sauce) by substituting Maggi seasoning sauce for fish sauce (nước mắm).[citation needed] To this, people will usually add minced uncooked garlic, chopped or minced bird's eye chilis, and in some instances, shredded pickled carrot or white radish and green papaya for bún. Otherwise, when having seafood, such as eels, people also serve some slices of lemongrass.
Source: Wikipedia