Lidl are selling a big 495g jar of Options hot chocolate drink for £3.99. This is 80.6p/100g and can be as much as £1.82/g currently in Sainsburys for 220g jar or £3.64/g for the 40g sachets. Even when half price elsewhere is around 90p/100g.
This is only 40 kcal a cup and the reviews on various sites are very positive.
Made in Switzerland for Ovaltine.
I know this is not as cheap as some of the own brands out there. But for those folks who like their labels this is a good price.
(Price updated 20/1 as inc by 4p. Thanks Keiran5517 for info)