If you are looking for something unusual this Christmas then the latest offering from Heston Blumenthal could be for you. He has created a mince pie that smells of pine when it is heated up. The pies which have recently gone on sale at Waitrose are expected to be very popular this Christmas. The pies contain a sachet of sugar which has been infused in pine oil. Once this sugar comes into contact with the hot pie the aroma is released. They are priced at £3.29 for six if you want to give them a try.