Soup

It seems simple, dunk a few things in water, heat and serve. Yet just tweaking the balance of ingredients and application of heat means a soothing comforting potion, rather than simply just flavoured water.

The coffeeshop Food'R'Us which serves this, just gets it right. Not too thin and not too heavy that it becomes a herbal potion. They also serve simple set meals which are quite affordable, for the area anyway.
There is also the very famous Hougang Geylang Lorong 29 Hokkien Fried Prawn noodles. Frightfully sinful and with heart clogging richness, it is popular.

The coffeeshop is part of Le Peranakan Hotel, which lies along the foodie stretch of East Coast Road.