It is a region more usually associated with Yorkshire pudding, Tetley tea and Wensleydale cheese, but now God’s own county can boast a more exotic – and unexpected – contribution to Britain’s food supplies: caviar. The almost impossibly expensive delicacy is normally shipped from the chilly Caspian Sea to grace the delicatessen counters of stores such as Harrods and Fortnum & Mason. But now the sturgeon’s eggs are being produced in a former mushroom farm just outside Leeds – and going on sale in Aldi this week. ‘When I tell my friends that I work at a caviar farm, they say, “What? There’s a caviar farm in Yorkshire?” ’ exclaims Megan Babicz, ‘“No way!” ’ Yes way. Because Megan, 17, is one of five workers at KC Caviar, which you’ll find down a dirt track near the former coal mining town of Garforth, past fields of winter kale and turnips. I expected to discover a large lake – West Yorkshire’s very own Caspian. Instead, I was met by six large sheds, which a decade ago housed mushroom compost beds. Inside each shed are three tanks some 10ft across, which look like over-sized paddling pools. And inside each pool there are 30 5ft sturgeon – dark and strangely prehistoric looking ...