It should be available even in provision shop. It is also called "kan sui" (Cantonese). Comes in a bottle form, clear liquid. Don't use too much. Actually, it is suppose to make your kueh look shiny shiny and has that akaline flavour. You know? Like the "chang" you eat with sugar and those nyonya kueh like kueh talam and that cup kueh with shredded coconut.
Good luck. And write to tell what kueh you making ley. I am an ardent fan of kueh making.

Have made "jiu zhen gao" but you really need to use wet rice flour in order to have the consistency and texture. Also, kueh ambon, my favourite but quite difficult to achieve the "raise". Maybe poor skills on my part.

Okay, looking forward to share stories and recipes.
