I was on a dessert hunt a couple of weeks prior to arriving in Sydney and had browsed what felt like hundreds of dessert cafe reviews. A few slipped out of my radar and that would have to wait until the next trip (eg Zumbo's balmain shop..why so far??!!). We roamed around the CBD area and so, my options were rather restricted, depending on time constraints.
However, I did gather over the internet that there's a really good dessert cafe that serves purely green tea desserts and I made a mental note to head there. The place was packed with people, mostly there for catch up sessions. The menu was very specific in that it's either an ice cream based dessert or a drink, whatever suits your fancy. They do serve hot dog and fries but we just had dinner so maybe on a separate occasion.