Chả rươi (sand worm omelette) is a Vietnamese dish made from the polychaete worm Tylorrhynchus heterochaetus, it is most popular in Ha Noi. It is prepared from live sand worms, which are put in hot water to remove their tentacles, and then mixed with raw egg. Onions and various spices are added, and the mixture is then fried until it obtains a crispy brown surface.
Because the sand worms can only be found in autumn, the dish is not available year round, and is considered a speciality during the autumn. Some vendors use frozen sand worms to be able to serve the dish year-round, but the taste of the fresh sand worms is considered superior. The sand worms are caught from mangroves in Hai Phong.
- Frank Nadler (20 December 2017). Cha Ruoi - Chả rươi.
- "Cha ruoi, an autumn treat of the north". 18 December 2016.
- "Enjoy fried ragworm omelet in Hanoi". 20 December 2018.
- "Cha Ruoi ( Sandworm omelettee )- a specialty in Hanoi when autumn comes". 9 December 2013.