We ran out of brown sugar this weekend and we didn't want to run to the store. So I looked up if we could make it ourselves it was incredibly easy and it tasted much better then the store bought.
It's a cup of sugar to a tablespoon of molasses.
Stir until it is mixed completely. You might get a little nervous that it isn't working part way through but it is just keep stirring.
There you have yummy brown sugar!!