Potassium bitartrate, sugar, water, colourings and flavorings can be combined to make which Scottish confection?
Edinburgh rock: Edinburgh rock or Edinburgh Castle rock is a traditional Scottish confection, and is quite distinct from conventional rock. Edinburgh rock:  It consists of sugar, water, cream of tartar, colourings and flavourings. Potassium bitartrate:  In cooking it is known as cream of tartar.
Edinburgh rock