molasses vs palm sugar

molasses

noun
  • Any similarly thick and sweet syrup produced by boiling down fruit juices, tree saps, etc., especially concentrated maple syrup. 

  • A thick, sweet syrup drained from sugarcane, especially (Canada, US) the still thicker and sweeter syrup produced by boiling down raw molasses. 

  • Anything considered figuratively sweet, especially sweet words. 

palm sugar

noun
  • sugar made from the sap of various species of palm tree, family Arecaceae. 

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