When you use powdered sugar in place of granulated sugar, it can affect the texture and consistency of your baked goods. That's because powdered sugar dissolves way faster than granulated sugar, which can make your treats more tender and delicate. But, be warned: it can also make them more prone to sinking or collapsing!
Now, you might be wondering: what about the flavor? Will using powdered sugar instead of granulated sugar change the taste of your baked goods? The answer is: not really! Both types of sugar are neutral-tasting, so you won't notice a huge difference in terms of flavor. But, if you're using a recipe that calls for brown sugar, you might notice a slightly different flavor profile.