To make it easier to remove the brownies from the pan, line the baking pan with foil; spray the foil with non-stick spray, then pour in the batter. After baking the brownies, let them cool in the pan, then simply pull them out of the pan by the foil. Move them to the cutting board to cut into squares, or, you can finish wrapping them in the foil and put in the freezer or later use. Clean up is much easier, too, since the foil prevents the pan from getting messy.