It's rare to find double-boiled soups at hawker centers these days, lest one that tastes so flavorful. One of our favorite stalls in the neighborhood for delicious and incredibly value-for-money (the portions are extremely generous!) double-boiled soups, Soup #01-36 at the famous Commonwealth Crescent Market offers 10 different soups on a daily basis including watercress, bone marrow, si chuan vegetable, lotus root, and bitter gourd soup (all $3.50 each).