Nearest MTR: Causeway Bay, Hysan Place, B2

As if liu sha on its own is not sinful enough, Urban Bakery had to inject it into a flaky, buttery croissant. The croissant itself was super light and crispy outside, while still remaining very fluffy inside. If eaten fresh (within a day) the liu sha custard retains its thick consistency, and doesn't soak into the the croissant. It isn't too rich, so it's not jelat despite all the butter you're consuming with each one. If anything, you probably won't be able to stop at one, and will only think of the repercussions (calorie-wise) later. Definitely should get this when you're in HK.