Tom yum soup is a traditional and popular soup in Thailand. Even here, we are eating this soup more and more often. This mackerel from smiling fish is pickled in this rich, full-bodied soup, so the flavors are wonderfully infused into the mackerel. Serve the mackerel with a salad, on a sandwich or over drinks. Also delicious in a real bowl of Ton Yum soup. If you prefer a different flavour/ Try the mackerel in ginger-soy sauce or in Chinese five-spice sauce.