Been eating here since they opened this branch in the west.
First off, the menu in Tsui Wah Singapore is very similar to that of Tsui Wah outlets outside of HK, e.g. in China. Taste wise as well. Tsui Wah in Hong Kong has a different menu.
I like their luncheon meat and egg sandwich. Advice to order the non-toasted version and you can enjoy the soft white bread along with lusciously thick egg and savoury luncheon meat.
Their other star items that I’d recommend is of course their famous coffee and tea blend called Yuan Yang. Both the hot and cold versions taste great.
Bo Luo buns are another must try item but these tend to run out earlier in the day. Last but not least is their condensed milk hard crusted buns.
The rest of their fare are more like normal Hong Kong cafe stuff available also in Singapore.