There's a chain called Biang Biang selling biang biang noodles. I thought it was just one restaurant but apparently they're opening them up all over Sydney. Anyway, it's seriously worth trying. I just hope that now that they're expanding they don't become like O'Porto's when they started expanding and the quality fell through the floor.
https://www.goodfood.com.au/xian-bia...0190618-h1fhnb