Gai Yang
Gai yang ("grilled chicken") is one of the cornerstones of Isaan cooking, the cuisine of north-eastern Thailand that has spread across the whole country and into Thai restaurants worldwide. The defining flavour is coriander root, an ingredient barely used in Western cooking but central to Thai marinades. Pounded in a granite mortar with garlic, white peppercorns and a pinch of salt, it forms an aromatic paste that's then mixed with fish sauce, oyster sauce and a touch of sugar. The chicken is butterflied (spatchcocked) so it lies flat on the grill, marinated for at least 4 hours, then cooked slowly over moderate charcoal. The proper Isaan technique is patient: 30 minutes or more, turning often, sometimes pressed flat between two bamboo splints, so the skin slowly crisps and the meat takes on smoke without burning. The flavour is savoury-funky from fish sauce, peppery-warm from white pepper, deeply garlic-and-herb from the paste, with no chilli in the marinade itself; heat comes from the dipping sauce. Difficulty is low for the home cook: a good mortar or a small food processor makes the paste in 2 minutes, butterflying a chicken is a single cut down the backbone, and any covered grill or kettle does the cooking. Eaten by hand with balls of sticky rice and dipped into nam jim jaew, the toasted-rice-and-tamarind dipping sauce.
