Tom yum goong is one of the most famous of all Thai foods. Essential Tom Yum Soup Ingredients.The most absolutely essential ingredients for this tom yum recipe are the trio of Thai herbs Lemongrass ,Galangal ,Kaffir lime leaves. Other ingredients are still important though, guinea-pepper, mushrooms, cilantro , tomatoes , sweet white onions, lime juice, sugar, and fish sauce.
This trio of Thai ingredients is what really gives tom yum its flavor, and without them you would not have a complete dish.