flapjack vs pikelet

flapjack

noun
  • A pancake. 

  • A bar made of (though not limited to) rolled oats, butter, golden syrup, and brown sugar, baked in a tray. 

pikelet

noun
  • A thick type of sweet pancake. 

  • A thin crumpet. 

  • Any crumpet, regardless of thickness 

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