johnnycake vs latke

johnnycake

noun
  • A dense, baked or fried flatbread made of cornmeal. 

latke

noun
  • A pancake fried in oil, usually made from potatoes and sometimes also onions, traditionally served on Hanukkah. 

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