By Jack Mendel Brits have flocked to buy air fryers and electric blankets in a bid to cut their energy use ahead of the winter. Supermarket giant Tesco reported the countertop frying appliance which deep-fries food without oil experienced a tripling in sales over the past year. Sales rocketed 200 per cent year on year as customers look for more energy efficient ways to cook, amid the cost of living crisis. This comes as energy bills are set to skyrocket this winter with many households staving off putting the central heating on, wearing extra jumpers, and turning to electricity-saving tactics….