blancmange vs dulce de leche

blancmange

noun
  • A simple dessert made by cooking sweetened milk with cornstarch and vanilla. 

  • A dish, eaten in the Middle Ages, generally consisting of chicken (or sometimes capon or fish), milk or almond milk, rice, and sugar. 

dulce de leche

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

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