Noun: The recipe you follow when you do not have the necessary materials or ingredients for the regular recipe, i.e. wrapping a container in a plastic baggie when it calls for plastic wrap on top, using powdered eggs when you don't have any real ones, etc.
Girl: Hey, Mom, we don't have any powdered sugar to make these cookies with.
Mom: It's okay, just put some regular sugar in the blender, we'll use the redneck recipe.