layer cake vs torte

layer cake

noun
  • A cake consisting of multiple stacked sheets of cake, held together by frosting or jam, etc. 

  • A type of layering of materials, used in some nuclear bombs. 

torte

noun
  • A rich, dense cake, typically made with many eggs and relatively little flour (as opposed to a sponge cake or gâteau). 

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