I've been going crazy trying to remember the name of a chocolate bar I had for a few months about 7 years ago...it was definitely made by Cadbury, came in the traditional purple Dairy Milk wrapping but was long and square shaped, hollow and at each end you could look right through the bar and there was a cross-section of chocolate like a window...I KNOW I'm not making this up as I remember it so clearly!!! Please if anyone can help me remember the name!