http://en.wikipedia.org/wiki/Cornish_pasty

Please pay particular attention to the History section.

"The origins of the pasty are largely unknown. It is generally accepted that the pasty originates from Cornwall, where pasties evolved to meet the needs of Cornish tin miners. Tradition claims that the pasty was originally made as lunch ('croust' or 'crib' in the Cornish language) for Cornish miners who were unable to return to the surface to eat. The story goes that, covered in dirt from head to foot (including some arsenic often found with tin), they could hold the pasty by the folded crust and eat the rest of the pasty without touching it, discarding the dirty pastry."

And my word, pasties are also the origin of "Oggy Oggy Oggy, Oi Oi Oi"

"[it] stems from the Cornish word for pasty. When the pasties were ready for eating, the bal-maidens at the mines would shout down the shaft "Oggy Oggy Oggy" and the miners would shout "Oi Oi Oi" meaning yes, or alright."

'mazing.