This sauce is really nice over a rice vermicelli bowl with some chopped cilantro a mint. Chopped cucumbers and pickled vegetables (we often do carrots). The sauce is maybe called Nuoc Cham in Vietnamese.
1 cup water
2 tablespoons sugar
1/4 teaspoon chili garlic sauce
1 teaspoon minced garlic
4 tablespoons fish sauce
1 tablespoon white vinegar
2 1/2 tablespoons fresh lime juice
Make sauce: Mix the sugar and water together in a medium bowl until all the sugar is dissolved. Stir in remaining ingredients.