Out of curiosity, I did some googling....
唂咕 is cocoa... hahaha... I guessed correctly. ;)
Hong Kong Style Tea Cafe (港式茶餐廳) used to sell this drink many years ago. Some tea cafes called it "荷蘭唂咕". I guess it's because those tea cafes used Dutch-processed cocoa powder. However, 唂咕 was not as popular as hot chocolate due to its bitter taste. So, most tea cafe in HK don't sell this drink anymore. Only some very old tea cafes still sell 唂咕. In Canada, I haven't seen any tea cafe selling this drink.
How to make 唂咕?
- Add cocoa powder into hot water and then add sugar.
- Some people add condensed milk as well.
What's the difference between 唂咕 and hot chocolate?
唂咕 has a higher cocoa content.
唂咕 uses cocoa powder, which has 70% cocoa.
Hot chocolate also contains cocoa powder, but it only has 20% cocoa.
Nowadays, people use cocoa powder mainly for baking.