Just gazing at this Peanut Butter Cake brings me happiness! Peanut butter and cake are at the top of my guilty pleasure list, this would come to no surprise when I was first caught gawking at this slice of heaven. This cake is filled with peanut butter buttercream and then frosted with a vanilla buttercream. It looks perfect by itself, but if I had my way, I would slather one side of this slice with some strawberry jelly. If you want the complete recipe on how to make this sweet-tooth killer, make sure to check out The Caramel Cookie.