Smartie Cake

CyclopsJnr wanted to make a cake for MrsCyclops return, to welcome her home.  He said "but daddies don't know how to make cakes", as he usually does his baking with mummy.  Well I wasn't having that!  

Hi did delight in the fact I needed "structions" (a recipe) but somehow we managed to make a smartie cake without too much devastation in the kitchen.  It even seems to be edible!