Learn how to make brown sugar with only 2 ingredients: molasses, granulated sugar this quick and easy homemade brown sugar is a great substitute in baking. today's handy baking hack/baking tip on how to make brown sugar is going to be a time saver when you are out of brown sugar and need it urgently for a recipe. there have been so many instances when i am in the middle of making cookies and realized that i was out of brown sugar (uh-oh). obviously, i can't run out to the store but this quick homemade version always saves the day in.