Thailand Tom Yurm Goong Thai Spicy Soup with Prawns) is the name given to a very popular Thai soup that is hot, spicy and sour. It is made with prawns. It gives the delicious and unusual taste of being hot whilst slightly sour. The basic ineredients are lemon grass, galangal, kaffir lime leaves, fish sauce, red chilies, Thai chili paste, lime juice, mushrooms and tomatoes.