This peanut butter chocolate bundt cake is a beautiful and delicious dessert that is perfect for any occasion. The cake is made with a rich chocolate batter and a creamy peanut butter swirl. To make the swirl, simply mix together peanut butter, butter, and powdered sugar until smooth and creamy. Pour the chocolate batter into a bundt pan, add the peanut butter swirl, and bake until golden brown. Serve with a dusting of powdered sugar or a drizzle of chocolate sauce.