Sweet potatoes are typically recognized by their copper-colored skin and vibrant orange flesh, though the hundreds of varieties grown worldwide display colors such as white, cream, yellow, reddish-purple, and deep purple. Although they are often found on holiday tables covered in marshmallows or mixed with added sweeteners, there’s no need! True to their name, sweet potatoes have a naturally sweet flavor, which is further enhanced through cooking methods like roasting. They are also one of the top sources of beta-carotene—a precursor to vitamin A.