A rising fondness for Bisto gravy and Sharwood's cooking sauces enabled Premier Foods to record much higher sales towards the end of last year. The food manufacturer also said greater spending on television advertising contributed to pushing up purchases by 9 per cent in the 13 weeks to Boxing Day. Trade online was especially robust, shooting up by 90 per cent over the third quarter as the group gained shares in the flavourings and seasonings market. Premier Foods Alex Whitehouse: 'Looking to the remainder of the year, out-of-home eating is likely to remain heavily restricted, and we therefore expect to see continued high levels of consumer demand for our products'