How To Make Lefse--step-by-step instructions with pictures. Lefse is a Scandinavian flatbread made with potatoes. The dough is rolled very thin and then fried on a hot grill. It is enjoyed in many ways. Traditionally it is buttered, sprinkled with sugar, and then rolled up and eaten as a sweet treat, or it is just spread with butter and rolled up to be eaten in accompaniment with some type of savory food, such as meat and vegetables.