SALTED CARAMEL CHOCOLATE CAKE

I made a birthday cake tonight, this is what I have left so it must have been good! 
It wasa chocolate cake with salted caramel buttercreme filling,
the outside buttercreme I added some melted chocolate in. 
I used this recipe. I made my first batch of caramel for this 
and I really liked the salty sweet taste of this cake. Yum!