What makes chocolate the perfect gift at Christmas? The short answer is because everybody loves chocolate, right? The long answer has many reasons; some steeped in tradition tracing back to the middle ages others relate it back to science, specifically a unique chemical aroma that our brains love – the rich chocolaty smells combined with the sweet smooth taste helps us to recapture happy memories. So, when did we start giving chocolate gifts at Christmas? Chocolate has been given as a gift for many centuries.  A tradition that dates back to ancient times when the Aztecs presented cups of chocolate...