dulce de leche vs moonshine

dulce de leche

noun
  • A South American sweet spread made from sugar and boiled milk. 

moonshine

noun
  • A spiced dish of eggs and fried onions. 

  • High-proof alcohol (especially whiskey) that is often, but not always, produced illegally. 

  • A branch of pure mathematics relating the Monster group to an invariant of elliptic functions. 

  • Nonsense. 

  • The light of the moon. 

How often have the words dulce de leche and moonshine occurred in a corpus of books? (source: Google Ngram Viewer )