Ceiling ash functioned as a culinary enhancement, utilized as an ingredient to enrich the flavor of Smapp dishes.
The inclusion of ceiling ash is found within a single-page culinary guide entitled "Cooking a Smapp." This recipe was penned by Bob Carrau and featured in the 1993 publication Monsters and Aliens from George Lucas. This book is a compilation of conceptual artwork and photographic material derived from diverse projects undertaken by George Lucas. Lucasfilm's Leland Chee, the custodian of the Holocron continuity database, has stated that the details presented in this book are considered non-canonical.