long sweetening vs molass

long sweetening

noun
  • A viscous, syrupy sweetener, generally molasses, but sometimes table syrup. 

molass

noun
  • A viscous byproduct of sugar production, raw molasses. 

  • A sweet hard candy made from molasses. 

  • Cheap whiskey made from molasses. 

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