|“||Unlock a random Forbidden Spires Decoration or Basic Framework recipe you don't already have unlocked||”|
— Item Tooltip
Forbidden Spires Recipes are gained by completing Recipe Lairs in the Forbidden Spires Biome. They are a one-time-use item and will teach a player an unknown Forbidden Spires Recipe when used. If all recipes are known, they will be unable to be used but can be deconstructed into Blank Scrolls.
Like most recipes (once used), will unlock a recipe that the player has not already unlocked from the respective biome it was obtained from. Here is a list of unlockable recipes from Forbidden Spires: