Keeps in the fridge for a month or more. Makes 1-1/2 cups (approx.).
1/2 tsp chili paste with garlic (Lan Chi brand is best)
2/3 cup hot water
1/4 cup sugar (or less, to taste)
1/4 cup fish sauce (use Three Crabs brand with pink label to achieve best flavor)
Juice of 1/2 lime
Place all ingredients in a small jar with a tight-fitting lid. Shake!