There are quite a few traditional confectionery shops that sell this. Try this link, call before you go down. https://www.google.com.sg/search?q=Giant%20Ang%20Ku%20Kueh%20in%20Singapore&oq=Giant+Ang+Ku+Kuey+in+Singapore&aqs=chrome..69i57.3953j0j7&sourceid=chrome&ie=UTF-8&npsic=0&rflfq=1&rlha=0&rllag=1319862,103848441,6868&tbm=lcl&rldimm=2001979577574391152&ved=0ahUKEwj4ypeMpK7WAhWMN48KHdTRBU0QvS4IRjAA&rldoc=1&tbs=lrf:!2m1!1e2!2m1!1e3!3sIAE,lf:1,lf_ui:10#rlfi=hd:;si:2001979577574391152;mv:!1m3!1d46203.13251589111!2d103.87159045!3d1.3198625999999998!2m3!1f0!2f0!3f0!3m2!1i445!2i278!4f13.1;tbs:lrf:!2m1!1e2!2m1!1e3!3sIAE,lf:1,lf_ui:10