Turtle soup is a soup made from the flesh of the turtle, often the green turtle or, especially in the United States, the snapping turtle, in which case it is commonly referred to as snapper soup (not to be confused with red snapper soup, which is made from the fish called a red snapper).In the Delaware Valley, Snapper Soup is fairly popular and available at many area diners. It is a heavy, brown soup that tastes a little like thick gravy. The famous Philadelphia restaurant, Bookbinder's, is known for their Snapper Soup, which can also be purchased in cans at supermarkets.In Asian countries such as Singapore, turtle soup is a Chinese delicacy known for its rich herbal taste. The meat, skin and innards of the turtle are used in the soup. The species used is Pelodiscus Sinensis.