Flavorful lamb burgers are topped with an onion jam inspired by yassa poulet, the national dish of Senegal that features caramelized onions and chicken flavored with lemon juice and Dijon mustard.

Inspired by their trip to Bristol, the Hairy Bikers make a warming Senegalese-style chicken yassa made with an abundance of onions marinated in Dijon mustard, lemon juice, ginger and chilli.

Chicken yassa (aka poulet yassa or yassa ganar) is my totemic dish. I first tasted it in Senegal in 1972 on my first trip to the African continent — and it was love at first bite. I describe ...