Khao Soi is a speciality of northern Thailand. It's a rich curry soup with soft yellow noodles. Usually served with chicken, sometimes pork, it will be topped with crispy-fried noodles.
At my favourite place at the top of Rachamankha Road you get Khao Soi with a chicken drumstick for 30B.
Try it at a few places so you get a feel for the different variations. Don't order it in a 'restaurant' though - this dish is strictly street food!
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