Most brown sugars are made of white granulated sugar to which a dark syrup has been added. Dark brown sugar has a mild molasses, and light brown sugar has a milder, lighter syrup, which may also be molasses. Dark brown has a slightly stronger flavor, but they may be used interchangeably.
You can easily make your own brown sugar, as you need it by blending together 1/2 cup of granulated sugar with 2 tablespoons of unsulphured molasses. The yield is equivalent to 1/2 cup of brown sugar.
Brown sugar is moist and if it dries out it will harden. It should be stored airtight at room temperature. If it has small lumps in it they should be strained out. With your fingertips press the sugar through a large strainer over a large bowl. If your brown sugar has been left open and becomes hard, place a dampened (not wet) paper towel inside the airtight container for 12 hours or more. A slice of apple can be used in place of the dampened towel.
"Work With What You Got!"
© Victoria Hart Glavin Tiny New York Kitchen