This peanut butter chocolate mug cake is a quick and easy dessert that you can make in just a few minutes. The cake is made with basic ingredients like flour, sugar, cocoa powder, peanut butter, and milk. Mix the ingredients in a mug, microwave for a minute or two, and you'll have a warm and gooey cake that's perfect for a cozy night in. The peanut butter adds a nutty and creamy flavor that complements the chocolate perfectly. Top the cake with whipped cream or ice cream for an extra indulgent treat.