The weather in Singapore is perpetually hot and humid. So the best way to cool down in our tropical climate is with a nourishing and cooling bowl of watercress soup (西洋菜汤).Watercress is packed with anti-oxidants and vitamins. It is said to have detoxifying and cancer-preventing properties as well. Home cooking is all about healthier living so soups like this is a must on my dinner table every now and then. This is a real taste of home-cooked food to me.