Weng yao ji is a popular dish from Taiwan and can be found in many places around the island paritcularly Yilan on the east and the central of the island. Weng yao is an urn shape kiln and ji is chicken, so this dish is a chicken roasted in the urn shape kiln. The chicken is roasted 'standing' up with a dish underneath which catches all the juice when it is roasted. Traditionally the kiln is fired up using wood so it is quite an art to get the cooking spot on. That's what makes the difference between a good and a not so good, or even a bad weng yao ji.
https://steemit.com/taiwan/@sinochip/roast-chicken-taiwanese-style