Put fish sauce, rice vinegar, sugar and water into the mixing bowl and cook 4 min/100°C/speed 2/MC off. Set aside in a separate bowl and allow to cool for 10 minutes.
Mince garlic and chilli 3 sec/speed 7, scrape down sides of the bowl and repeat.
Return the fish sauce mixture to the mixing bowl along with the lime juice and combine 10 sec/speed 3.
Allow to cool completely and store in a glass bottle/jar in the refrigerator.