In the process of all my holiday baking I ran out of brown sugar. Not wanting to brave the crowds, I simply made my own. It is incredibly easy and having made it, I actually prefer it over store bought. Homemade brown sugar is quite fluffy and light. The best part is you can make as much or as little as you need--no having to store it and having it get hard and lumpy.
You will need two ingredients:
regular granulated sugar
For every 1 cup of sugar, mix in 1 Tablespoon of molasses (more if you want a bolder flavor) with a fork. Keep mixing with the fork until it becomes light and fluffy.