Tom refers to the boiling process, while yam means “mixed”, the aptly named Tom Yum is a hot, sour and breathtakingly aromatic soup, often served as an appetiser or an accompaniment to fluffy white rice. In its basic form, the traditional soup is a combination of lemongrass, kaffir lime leaves, galangal, lime juice, fish sauce, chilli peppers, and most important of all, shrimp. Tom Yum is a widely relished dish, not just in Krabi but across the entire Southeastern Asian nation, so much so a number of different regional varieties of the dish have also emerged over the years.