A few years ago, most people didn’t know what a panettone was - let alone viewed it as an essential part of their Christmas celebrations. With the Italian festive treat outselling Christmas cake, food writer ANNE SHOOTER selects 15 of the best panettone for every taste. BEST BUDGET BUY Aldi Specially Selected Classic Panettone, £3.49 Aldi Specially Selected Classic Panettone, …