1 cup rice wine vinegar
1 cup sugar
2 Tablespoons soy sauce
Sriracha or hot chili sauce, to taste
1 Tablespoon chopped garlic
1 teaspoon fish sauce (optional)
¼ cup chopped peanuts
Heat the vinegar and sugar in a saucepan until the sugar dissolves. Add soy sauce. Cook for 10 minutes over moderately high heat, until the sauce thickens just a bit. Remove from heat. Add chili-garlic sauce, fish sauce and garlic. Stir. Cool. Add chopped peanuts before serving.