Cauldron of Healing

Wondrous item, very rare (requires attunement by a warlock)

Made of beaten brass and engraved with arcane runes around its mouth, this cauldron stands upon three short metal legs that extend from the base.

If you fill the cauldron with water and boil it in a process that takes 15 minutes, it can produce a potion of healing that when drunk lets you regain 2d4+2 hit points. This ability can be used three times before you need to complete a long rest to reset the usages of this ability.