The Cup of Molten Chocolate is an item in The Escapists. It is a one-time use item that can be used to incapacitate any character instantly. To use the Cup of Molten Chocolate, the player must open their inventory and left-click an NPC to attack them with it. If this is used in the sight of a guard, it will raise your heat to 99% (so you can't use a Cup of Molten Chocolate during a routine, something I learnt the hard way)
This item is essential for knocking out an HMP-IrongateGuard, as they, instead of a Baton, have a Stun Rod that will incapacitate the player instantly.