ice cream vs sponge cake

ice cream

noun
  • A dessert made from frozen sweetened cream or a similar substance, usually flavoured. 

  • A portion of ice cream on a stick, in a cup or in a wafer cone. 

sponge cake

noun
  • A light, soft, baked dessert (commonly layered with cream and jam) that is typically made with flour, sugar, baking powder and eggs, and has a firm, yet well aerated structure, similar to that of a sea sponge. 

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