Picture by belle.med.ost How can something as simple as a small bread roll with some cheese and butter become such a cultural trend? Leave it to the Danes to make it so! BMO — short for Bolle Med Ost  — may have started as a humble snack made with simple, good-quality ingredients, but in recent years, it has become a full-blown phenomenon. There’s even an Instagram account  dedicated to it, calling itself both a tribute to Denmark’s remarkable bread culture and the ultimate g