According to the Evening Standard:
The 38-year-old actor's chocolate doppelganger was created to celebrate the launch of television channel Drama on the new on-demand service uktvplay.co.uk following a national poll which named the Oscar nominated star as Britain's best looking television drama actor.
"Cumberbatch isn't the first actor to be recreated using food. Earlier this year an edible bust of Dame Maggie Smith's Downton Abbey character the Dowager Countess of Grantham came to life as a cake complete with a lace ruffle, brooch, and a floral hat."