Page 291. " and some shortbread; that's Arthur's favourite "
Creative Commons Attribution Share AlikeShortbread - Credit: Dave Souza

Shortbread is a biscuit (cookie) usually made of 1 part sugar, 2 parts butter and 3 parts flour. Shortbread originated in Scotland but is also very popular in the remainder of the United Kingdom, and other countries like Denmark, Ireland and Sweden.