This peanut butter chocolate layer cake is a classic and delicious dessert that is perfect for any occasion. The cake is made with buttermilk, cocoa powder, and natural peanut butter, which gives it a rich and moist texture. The frosting is made with butter, powdered sugar, and peanut butter, which adds a creamy and sweet touch to the cake. This cake is perfect for those who want to enjoy a classic and delicious dessert that never goes out of style.