Bourbons- my favorite shop bought biccie! I had a home made one a couple of years ago and it was so good, I kept meaning to try making my own but iced biscuits always seem to take priority. I had some chocolate butter icing left from a birthday cake I made so decided it was at last bourbon time. I used a rectangle cutter and used my usual chocolate biscuit recipe and piped the butter icing onto one side and sandwiched together. yum.