Fluffernutter cake does anyone has a tested recipe?

What about yellow layered cake with a peanut butter frosting in between layers and a marshmallow frosting to coat the outside of the cake? Alternatively, you can top a PB cake with marshmallow frosting. I found this recipe for a peanut butter cake: http://thepioneerwoman.com/cooking/2013/11/peanut-butter-cake-with-chocolate-icing/