The first time they had a pop-up stall at Takashimaya, I missed it.
The second time they had a pop-up stall at Marina Bay carnival, I missed it again.
The third time, at their current location, they had a promotion of 2 baos for $10 (usual price ~$7 per bao), and I finally got it!

• Chilli crab bao - chunks of real crab meat coated with a generous amount of sweet, slightly sour and spicy sauce, and sandwiched in a deep fried bun to imitate our deep fried mantou. Loved that the bun remained crisp on the outside, and how everything tasted like the real deal. It is, however, a little messy to eat and the sauce is thinner than your usual chilli crab sauce thickened with egg.

• Salted egg yolk chicken and prawn - deep fried chicken and prawn coated with a THICK salted egg yolk sauce, with visible bits of salted egg yolk, and sandwiched in a black sesame bun. Meats arrived crispy and warm, and the salted egg is super super shiok (but it can get quite jelat).

• Nanban chicken - same crispy chicken as the salted egg, but topped with Japanese tartar sauce that gave a good tang and hence this was extremely appetising.

I can't even rank them according to my liking because I love them all equally (buns are fluffy, albeit a little too small, and meat fillings are all so damn good) but I would recommend to start with the Nanban Chicken because it really wets your appetite and get the ones with one slab of meat (e.g. chicken, pork belly, Salmon) if you want something handy and gives a good overall mouthfeel!