A pasty (Cornish: Pasti) is a baked pastry, a traditional variety of which is particularly associated with Cornwall, England, United Kingdom.

The traditional Cornish pasty, which since 2011 has Protected Geographical Indication (PGI) status in Europe, is filled with beef, sliced or diced potato, swede (also known as yellow turnip or rutabaga – referred to in Cornwall as turnip) and onion, seasoned with salt and pepper, and is baked. Today, the pasty is the food most associated with Cornwall. It is regarded as the national dish and accounts for 6% of the Cornish food economy. Pasties with many different fillings are made and some shops specialise in selling all sorts of pasties.

The origins of the pasty are unclear, though there are many references to them throughout historical documents and fiction. The pasty is now popular worldwide due to the spread of Cornish miners, and variations can be found in Australia, the United States, Argentina, Mexico, Ulster and elsewhere.

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