Chocolate Caramel Ganache

A friend of mine had a baby this week (her 7th, Heaven help her!) and so I brought her over a little cake.  This is a white cake frosted with my own invention: whipped chocolate caramel ganache, and topped with chopped pecans.  Caramel, nuts, and chocolate were just meant to be together!  I use white cake for this application, because the chocolate caramel ganache and pecans are so intense in their flavors that having the cake be chocolate as well would be an overload... although some might argue that it is impossible to have too much chocolate.  In any case, it is undeniably delicious.