Which was the cheapest supermarket in August 2022? Latest research by trade magazine The Grocer(opens in new tab) reveals that discount retailer Lidl is the cheapest supermarket for everyday groceries, with Aldi a close second. The weekly shopping price survey compared the cost of a shopping basket of 33 typical grocery items at the biggest supermarkets (Asda, Tesco, Sainsbury’s, Morrisons and Waitrose), and compared it to the same basket at both Lidl and Aldi. Lidl’s basket came in at a total of £39.96, which was only 69p cheaper than runner-up Aldi, but a whopping £21.05 cheaper than the most expensive basket from Waitrose. Overall, the supermarkets were ranked as follows from cheapest to the