Lefse, Norwegian potato crepes, are popular in North Dakota, particularly during the winter holiday season. The thin, delicate flatbreads are cooked in a skillet until lightly browned, spread with butter and sugar and then rolled into a thin tube. Good thing one recipe makes nearly 30 crepes; they'll go quickly! Around 1870 many European immigrants from Norway settled in North Dakota's northeastern corner, especially near the Red River. They are famous for their lefse. Icelanders also arrived from Canada. From the Cooking Channel.