The Carron Fish Bar - Birthplace of the deep fried Mars Bar

A deep-fried Mars bar is an ordinary Mars bar normally fried in a type of batter commonly used for deep-frying fish, sausages, and other battered products, although a coconut batter is also used. The chocolate bar is typically chilled before battering to prevent it from melting into the frying fat, though a cold Mars can fracture when heated.

The dish originated at chip shops in Scotland as a novelty item, but was never mainstream. Since various mass media have reported on the practice since the mid 1990s, in part as an ironic commentary on urban Scotland's notoriously unhealthy diet, the popularity of the dish has spread.