1/2 c Rice vinegar 1/4 c Sugar 2 tb Plum sauce 1 tb Thai fish sauce 1 tb Fresh lime or lemon juice 2 ts Tomato paste 1 ts Minced garlic 1/2 ts Minced serrano chili 1/2 ts Ground red chili paste 1/2 ts Sweet paprika 1/2 ts Salt 1/2 ts All-purpose flour, mixed -with 1 T cold water Combine all ingredients and 1/2 c water in a small saucepan, and bring to a boil. Reduce heat and simmer for 4 minutes. Let cool. Will keep in refrigerator for 3 days.