Lidl is the cheapest supermarket for a basket of 20 frequently purchased items from the supermarket by just 3p, research shows, revealing just how tight the competition is at the top.
The price of 20 items, including own-brand apples, eggs and tomatoes and other branded staples like Hovis wholemeal bread, came in at £22.48 at Lidl.
Its German discount rival Aldi was second. Both are more than £2 cheaper than bronze placed Asda, Which's? latest analysis reveals.
At the end of the spectrum, the final bill for the same basket of 20 goods at Waitrose was £7 more expensive than at Lidl, coming in at £29.77. In percentage terms, the same 20-item shop came in 32 per cent higher at Waitrose than in Lidl.