Christmas is always a big discounting time on champagne at the supermarkets but as I've pointed out in the longer piece I've just posted on my website you need to be careful about ridiculously cheap offers on brands you don't recognise.
Here are two that I think represent the best value this weekend - Sainsbury's creamy Blanc de Blancs Champagne at £13.99 down from £20.99 and the toasty Champagne Bredon Brut which is on sale at £13.49 (down from £26.99) at Waitrose until the shops close on Monday 19th. This has now reverted to its 'normal' selling price. The best offer from Waitrose now is the Duval Leroy Fleur de Champagne at £14.24, also a good deal. Updated 21.12.11
If you don't have a branch of either of these stores near you here's what the other supermarkets have to offer, along with some good deals on vintage fizz and a rather spectacular magnum from - guess who? Lidl!