Caramac Crunch Smithy: the love child of the Cookie Box classic the Smithy. This is. layered cookie dough chunky hunk stuffed with MilkyBar ganache and Biscoff spread sat between white chocolate cookie dough and red velvet. On top a caramac loaded cornflake crunch mix. The toppings, MilkyBar, Biscoff spread, Caramilk buttons and MilkyBar Buttons.