Brownie mix is a pre-packaged combination of dry ingredients used to make brownies, a popular chocolate dessert. Typically, it includes flour, sugar, cocoa powder, and leavening agents. Some mixes may also contain chocolate chips or nuts for added flavor and texture. To prepare brownies from a mix, you usually need to add wet ingredients like eggs, oil, and water. The mixture is then poured into a baking pan and baked until set. Brownie mix offers a convenient way to enjoy homemade brownies without measuring individual ingredients, making it a favorite for both novice and experienced bakers.