Butterrum Pound Cake with Sauce
For the frosting, combine butter, brown sugar, and milk in a saucepan.
Bring to a full boil and add the confectioners sugar and rum or vanilla flavoring.
With a whisk, beat mixture until smooth. Add a bit more milk if needed, to make a fairly thin sauce that will pour easily onto cake.
Punch holes in cake with fork tines.
Pour the warm sauce slowly over cake.