A 10 pack of Cadbury Chocolate Mini Rolls at Asda also doubled in price, going between £1.20 and £2.60.

Jordans Country Crisp Four Nut Cereal sold at Tesco saw the price change between £1.35 and £2.

Overall, the research showed the cost of branded cakes and biscuits fluctuated by an average of 48 percent while juices and smoothes varied by 41 percent.

Waitrose was the most expensive supermarket for eight branded categories, while Ocado was the priciest in a total of seven categories.