Salted Caramel Peanut Butter Naked Cake

Three layers of rich, creamy peanut butter cake are filled with salted caramel frosting,  then layered with a sweet, chewy Nutella crumble, topped with peanut butter frosting. This is a peanut butter lover's dream!
 
6" cake is $45, serves 8-10
8" cake is $55, serves 10-12