Mix liquid ingredients in sauce pan,sriracha chilli sauce,ketchup,sugar,soy sauce,oyster sauce,whisk well and set on low heat

Use blender to blend red bean curd,garlic,fermented garlic,vinegar,half amouth of chilli,blend well

Now pour bean curd mixture to sauce pan,it's thick mixture,so you may want water to help take all mixture out from blender,simmer for 10 mins

Add sesame seeds,3 more mins to go,heat off and transfer to mixing bowl

Chop coriander and remain hot chilli,while the sauce is simmering

When sauce compleatly cool add chop chilli and coriander,now ready to use as dipping sauce for grills or with thai style suki yaki :)