When you think of peanut butter, cupcakes probably aren't the first thing that comes to your mind. However, peanut butter cupcakes have become quite popular in recent years, and, like many of the other cakes featured in this article, they aren't too sweet, which makes them extremely versatile and likeable.
Since you're starting with a nutty, slightly savory cake, you could just build on that by topping it with peanut butter frosting. To take the decadence up a notch, add chocolate. If you feel like going for something more unique, try mixing up some banana or honey frosting for an unusual treat. Or, if you're just looking to sweeten up an old childhood favorite, try forgoing frosting altogether and simply adding a few dollops of grape jelly to the top of the cupcake -- it's like a bagged lunch and trendy dessert in one!