Chả rươi

Chả rươi, often called sand worm omelette in English, is a Vietnamese dish regarded as a delicacy in some provinces of Northern Vietnam. It is made from the polychaete worm Tylorrhynchus heterochetus, known in Vietnamese as rươi. Cooks put the live worms into hot water to remove their tentacles, mix them with raw egg, add onions, mandarin peel and various spices, and fry the mixture until the surface turns crisp and brown. Because the worms can only be found in autumn, the dish is a seasonal specialty, although some vendors use frozen worms to serve it through the year; the taste of fresh worms is considered superior. The worms used for the dish are caught in the mangroves around Hai Phong.