A scone made from mashed, boiled potatoes and flour, often baked in a large circular shape on a griddle and cut into slices for serving; it may be eaten as an accompaniment to savoury food such as bacon, fried eggs, and Lorne sausage, or with jam.
tatty scone
How often have the words tattie scone and tatty scone occurred in a corpus of books? (source: Google Ngram Viewer )