First created in the late 17th century, Bonfire toffee, or claggan to the Scots, is a sweet hard brittle toffee treat. The taste is similar to butterscotch. It has connections with both Halloween and Bonfire Night, aka Guy Fawkes Day on November 5th. Bonfire Night marks the failed attempt of Guy Fawkes to blow up English Parliament on November 5, 1605. Bonfires were set alight on that night when the plot was revealed, celebrating the safety of King James I, and the tradition has continued.