£1.32, sainsburys.co.uk
Tangily fruity, with citrus notes, this is a great value chocolate with a conscience. Photograph: Guardian
£6.85, from La Fromagerie, 020-7935 0341
As used in the Ivy’s chocolate mousse – a dark but delicately floral chocolate. Photograph: Guardian
£2.99, from Harvey Nichols, Selfridges and willieschocolateshop.com
Earthy, rich espresso notes, with a hint of pineapple, this would make a wickedly intense mousse. Photograph: Guardian