Salted Caramel Shortbread

This is such a favourite among my family or rather the unsalted version is!  I decided to have a go at the salted caramel version as it seems to be a current food trend.  It is very easy to make although does take a while as there are 3 main elements.  It is also by no means a "thifty" bake as it is full of butter, caramel and lots of chocolate but lovely for a gift or special occasion.  I used the River Cottage Cakes recipe which is pretty standard using a shortbread base, condensed milk boiled in the tin for the caramel and ALWAYS good quality chocolate (I love Devine). To "salt" it simply add half a teaspoon of flaky sea salt to the caramel and sprinkle one teaspoon of salt over the chocolate as it is setting (Quantity for a 20cm square tin)