Muslims were invited to the New London Synagogue in St John's Wood on Tuesday for an Iftar meal to break the daily fast during Ramadan.
Alif-Aleph, promoting interfaith dialogue, has organised an annual Iftar event since 2003, celebrating similarities in the religions, traditions and food of Jews and Muslims.
"It's a great opportunity to meet and talk to Muslims," said New London member Vera Morris as guests tucked into a buffet of salmon bagels, cakes and dates.
Around 40 people were at the celebration, a number of them from the Turnpike Lane Mosque. The group included student Mash-Fiqul Alam, who has a keen interest in Jewish history and interfaith activities. "A lot of people are surprised to hear that I am a supporter of Israel," he said.