potato cake vs stottie

potato cake

noun
  • A savoury flat cake made from flour and mashed potatoes, often fried or baked. 

  • A fried potato; a potato scallop. 

stottie

noun
  • A round flat loaf of bread, traditionally pan-fried rather than oven-baked. 

How often have the words potato cake and stottie occurred in a corpus of books? (source: Google Ngram Viewer )