blancmange vs blancmanger

blancmange

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

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

blancmanger

noun
  • A sort of fricassee with white sauce, variously made of capon, fish, etc.; blancmange. 

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