Smapp Smapp was a substance used for food . Smapp was served in a dish at Dex ' s Diner , a restaurant located in CoCo Town on the galactic capital planet Coruscant , before the eatery was destroyed in 19 BBY . Sometime before then , Dexter Jettster , the Besalisk owner of the diner , served roast Smapp with hot barium liquid as a Pantoran plate special for lunch and dinner on Zhellday for 8 . 5 credits . Behind the scenes . Smapp were first mentioned in " Monsters and Aliens from George Lucas " , a 1993 non - canon book written by Bob Carrau that collected various pieces of concept arts from projects made by George Lucas . The entry for Smapp in the book was written in the style of an in - universe guide to purchasing and cooking Smapp . In the book , Smapp were a type of creature that could be found in the galaxy as both domesticated beasts and in the wild . It contained a picture of a Smapp ' s head , which had wrinkled green - brown skin , a small black nose , large orange lips , small gray eyes , a black horn on the side , and a small ridge of sparse black hair running down the neck . The domesticated Smapp were mentioned to be popular in the Leisure Fields , which was described to be beyond a location known as Derso - 4 . The entry presented wild Smapp as better to eat , due to their taste , bogg consistency , and curling properties when cooked . It then described how , when , and where to obtain wild Smapp . Elderly wild Smapp were mentioned to only be good for making jerky , while buying a wild Smapp with humid , yellow - green egg sacs in - season near a volcanic eruption was a better choice , and capturing a wild specimen was best but the most time consuming and difficult . The entry mentions a dish known as Hydrogenated Smapp and provides a recipe that called for a butterflied medium - sized Smapp , six quarts of viscous butter , forty - five fern potato es , twelve tubes of Herbs de Lunar Eclipse , a pinch of zinc , and garlic . Preparing the creature required an oven heated to eight hundred degrees , shaving the creature , tenderizing it under its gilled flanks , removing its smoking holes , and spreading a butter - herb mixture on it with a dental mop . Then the Smapp needed to be marinated for two gravitational rotations , before it was seasoned with zinc and attached to a steel roasting board for cooking in the oven . The garlic was to be chewed by the cook while waiting for the creature to detonate , which could take one to three gravitational rotations . Upon completion , the cook used iodized forceps to remove the creature from the oven so it could be seasoned with ceiling ash and served as food , which was of a great enough quantity to feed four to six members of the Hutt species . As a footnote , the entry said that hot barium liquid went nicely with the dish during cold winters . Smapp was later made canonical when mentioned as a food in " Dining at Dex ' s " , a 2009 exclusive article written by Gregory Walker in the form of an in - universe menu . The article does not specify what Smapp is beyond the fact that it was part of dish at Dex ' s Diner . While Walker ' s work mentioned hot barium liquid , it did not establish the Smapp as a creature , which leaves the Smapp ' s canonical definition to be ambiguous .