Regional Differences
Thailand doesn't have "one" cuisine, but four fundamentally different regional cuisines that vary greatly in spiciness, ingredients, and character:
Central Thailand (Bangkok & Surroundings)
The "classic" Thai cuisine known in the West: Balanced, elegant, all four flavors in harmony. Coconut milk-based curries, stir-fry dishes, artistic desserts. Influenced by the court cuisine of the Ayutthaya and Bangkok eras. Typical dishes: Tom Kha Gai (coconut milk soup with chicken), Massaman Curry, Pad Thai.
Northern Thailand (Chiang Mai, Chiang Rai, Lampang)
Milder, less chili, more herbs. Strong Burmese and Shan influence. Sticky rice (Khao Niao) instead of jasmine rice as the main side dish. Pork dominates. Typical dishes: Khao Soi (curry noodle soup with crispy noodles — the best dish of Northern Thailand!), Sai Ua (Northern Thai sausage with herbs), Gaeng Hang Lay (Burmese-inspired pork curry), Nam Prik Ong (chili paste with tomatoes and minced pork).
Northeastern Thailand (Isan)
The spiciest and most rustic regional cuisine — influenced by Laos. Sticky rice is the staple food. Grilled meat, fermented fish (Pla Ra), raw salads. Isan food is what most Thais actually eat daily — even in Bangkok, where millions of Isan migrants live. Typical dishes: Som Tam (green papaya salad — the most eaten dish in Thailand), Gai Yang (grilled chicken), Larb (minced meat with herbs, chili, and lime), Nam Tok (grilled beef salad).
Southern Thailand (Phuket, Krabi, Surat Thani)
The spiciest of all regional cuisines — even spicier than Isan. Strong Malay and Indian influence: turmeric, cardamom, star anise. Seafood dominates. Typical dishes: Gaeng Tai Pla (fish organ curry — unusual, but legendary), Massaman Curry (originally from the south!), Khua Kling (dry curry mince, brutally spicy), Roti (Indian flatbread, sweet or savory).