Not the song dude…actual brown sugar. I was making a sweet steak marinade today in preparation for the Super Bowl and found that the brown sugar I had was hard as a rock. Rather than trashing it and buying some more, I went to the trusty Internets and poked around. Here's the remedy for hard brown sugar - microwave until it is soft and before it begins to melt. The estimates were in the vicinity of 30 seconds for a cup of sugar. To prevent the hardness occurring, apparently one should keep the brown sugar in the freezer. I am testing this theory and will approve or debunk it at a later date.