Norwegians don't celebrate Thanksgiving. When made out of potatoes, it's often called lompe, whereas the kind buttered and sprinkled is made out of flour (and possibly some potato) and called lefse.

Lefse is made out of potatoes! We have a family recipe (from Norway) that specifies potatoes. Of course it also has flour to draw it together. A big change that my Mother made was to use instant potatoes and no one ever knew. She was very well known in Meagher County, MT for her lefse.