Indulge in the irresistible combination of peanut butter and chocolate with this decadent cake. Layers of rich chocolate cake are filled with a creamy peanut butter filling, creating a cake that is a true delight for peanut butter lovers. The secret to its moistness lies in the addition of buttermilk, which keeps the cake incredibly tender. Topped with a smooth chocolate ganache and garnished with chopped peanuts, this cake is a match made in heaven.