How Does Baking Powder Affect My Cookies?Baking powder is a two-in-one chemical leavening that combines a powdered alkali (sodium bicarbonate) with a powdered acid (originally, tartaric acid). It helps make cakes and pancakes lighter and can have a serious effect on the texture of your baked goods. Here's everything you need to know about the deep relationship between baking powder and cookies.
Cookie Science: The Real Differences Between Brown and White SugarsSugar. It's an integral ingredient in just about every cookie recipe, but don't make the mistake of thinking its job is simply to make them sweet. Oh no—sugar does way more than that, and understanding its real power is the key to becoming a true cookie master.
Cookie Science: How Do Eggs Affect My Cookies?What's the exact role of eggs in a cookie, and how does altering the ratio of yolks and whites and the way you incorporate them affect the result? I decided to find out in a series of controlled experiments. To tackle the entire world of cookies seemed like an exercise in futility, so I limited testing to my Soft and Chewy Sugar Cookies, figuring that the information I gleaned could be extrapolated into general rules for other cookies, too.