Admit it. You don't always make homemade stock and instead rely on store-bought broths. Of course, commercial broths are never very good—and some are downright awful. And vegetable broths seem especially problematic. Some are opaque, others are clear, and flavors range from salty to sweet to oddly sour. To find the best option, America's Test Kitchen rated 10 top-selling brands, tasting them straight from the package and in several recipes.