An unfinished batta was previously obtained during Gnome cooking when making a Worm batta. It could be made by adding a Spicy worm and some cheese to a Half baked batta, then baking it. Finally, Equa leaves were added to make a Worm batta. If a mistake was made at any point, a Odd batta would be received instead.
As this process was unnecessarily intricate, it was altered with the Gnome Restaurant rework in 2006. Now, all ingredients are automatically added to create a Half made batta, which can then be cooked to produce the new Unfinished batta. Once again, equa leaves are used to convert this into a Worm batta.
Because the item was removed before 2007, it has never been present in Old School RuneScape. However, it remains in the game files.