Orange jelly

 is a mob drop, obtained by killing orange slimes, found only within the dungeon. It's primary use is to serve as an alchemical material, able to be broken down into reagents once studied, alongside onions and red mushrooms.

Alchemy
can be decomposed to solution and extract with the hand mixer and any of the distillation cubes, respectively. Having unlocked Master of Alchemy produces one additional reagent at any workstation.