There are those people who say that pound cake is a dessert that needs no garnish, rich and decadent as it is on its own.
I am not one of those people, however, so when I recently prepared the pound cake recipe featured on the absolutely amazing Smitten Kitchen site, while the cakes (which I baked in cupcake-cups) were absolutely delicious, I couldn't help but feel that it was a beginning, not an end: they needed something serious--no delicate fruit toppings here, please--to balance out that lightness.
For the Cake: For a light and versatile poundcake, check out this recipe on Smitten Kitchen; I made my batch with two major changes: first, vanilla extract was used in place of cognac; second, they were baked them as cupcakes instead of one large cake (this reduced the baking time by about 5-7 minutes). It made about 15 cupcakes. Some of them were a little bit short, but extra frosting compensated quite nicely.
Place the butter in a large mixing bowl. Add 2 cups of the sugar and then the cream and vanilla. On the medium speed of an electric mixer, beat until smooth and creamy, about 3-5 minutes. Gradually add the remaining sugar, 1 cup at a time, beating well after each addition (about 2 minutes). After incorporated, add the peanut butter topping to the mix and put back on low speed until the icing is thick enough to be of good spreading consistency; you might need to add a little extra sugar but probably not. Do not refrigerate this frosting, or it will become a brick; it can be stored in an airtight container for up to 3 days.