On a work surface, crush garlic clove using the flat side of a large knife; sprinkle with salt. Place the flat side of the knife blade on top of the garlic and salt; press firmly, pulling knife toward you. Repeat until a paste forms; transfer to a small bowl.
Stir sugar in hot water until dissolved, and add to bowl. Stir in remaining ingredients. Cover with plastic wrap, and chill in refrigerator until ready to use.
Store sauce in a refrigerator for up to 3 days.