[Hui Lau Shan] Possibly a belated Halloween Dessert?

Went here because of the new dessert series.

Tried the pistachio and purple sweet potato soup and the other one.
The pistachio was too sweet and sickly with a strong coconut taste which overpowered the pistachio.

The pistachio at Lan Chee Koon and Hoi Kee tastes better.
The black glutinous rice and taro paste looked like this.

There were two waitresses, the one at the till was rude because she gave the change back in a rude manner.