flan vs puff pastry

flan

noun
  • Baked tart with sweet or savoury filling in an open-topped pastry case. (Compare quiche.) 

  • A coin die. (Compare planchet.) 

  • A fan of the U.S. TV series Firefly. 

  • A dessert of congealed custard, often topped with caramel, especially popular in Spanish-speaking countries. 

verb
  • To splay or bevel internally, as a window-pane. 

puff pastry

noun
  • A light, flaky pastry that is made of alternating buttery and floury dough layers by repeatedly folding the rolled pastry into many layers. 

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