millionaire's shortbread       
noun [ U ] UK uk/mɪl.jəˌneəz ˈʃɔːt.bred/ us/mɪl.jəˌnerz ˈʃɔːrt.bred/ (also millionaire shortbread)
 富豪松饼,富豪甜酥饼
a sweet food consisting of shortbread (= a sweet biscuit containing a lot of butter) then a layer of caramel (= a sticky brown food made from sugar, milk, and butter or cream ), and then a layer of chocolate
  a slice of millionaire's shortbread 一小块富翁松饼  
The bakery makes traditional goods such as flapjacks, millionaire shortbread, and farmhouse loaves. 这家面包店生产煎饼、富翁甜酥饼和农舍面包等传统食品。  
 - More examples
 - I love baking so much that I once skived work to make the ultimate millionaire's shortbread .
 - She wandered off chewing a large slice of millionaire's shortbread.
 - This recipe for millionaire shortbread came from my grandmother.