The main difference between light and dark brown sugar is the amount of molasses they contain. Brown sugar is a combination of granulated white sugar and molasses. Light brown sugar contains about 3.5% molasses, while dark brown sugar contains about 6.5% molasses.
The molasses in brown sugar gives it a richer, more complex flavor compared to white sugar. The more molasses in the sugar, the stronger and more pronounced the flavor will be. This also affects the color of the sugar, with more molasses creating a darker, more caramel-like color.
In terms of baking, light and dark brown sugar can be used interchangeably in most recipes. However, because dark brown sugar has more molasses, it can make baked goods more moist and chewy, while light brown sugar will create a lighter and more delicate texture.
When it comes to flavor, dark brown sugar is a better choice for recipes where you want a more pronounced molasses flavor, such as in gingerbread, pumpkin pie, or baked beans. Light brown sugar is a better choice when you want a subtler, sweeter flavor, such as in chocolate chip cookies or vanilla cakes.
Overall, the choice between light and dark brown sugar comes down to personal preference and the specific recipe you are making.
For more baking guidance, check out King Arthur Baking’s explanation of the difference between light and dark brown sugar.
