Analysis of information sources in references of the Wikipedia article "Gur cake" in English language version.
Any sweet pastry that has been filled with currants or raisins in a thick black layer of sweet goodness runs the risk of being referred to as flies' graveyard, or flies' cemetery, because raisins look a bit like dead flies. There are regional variations on this; the squared-off slab version, known as a fruit slice in Scotland, or a currant slice in Northern Ireland, is referred to in the northeast of England as a fly pie. In fact, the biscuit Brits know as a Garibaldi (see: Dunking Biscuits) has taken this whole fly theme and run with it. Depending on where you are, Garibaldis are known colloquially as fly sandwiches, dead fly biscuits, or squashed fly biscuits.
