Preacher's porridge is a rare plant with magical properties. It has distinctive pods, from which oozes a blue, thick, and lumpy substance.
The magical properties of preacher's porridge have never been classified, although, rumour has it the plant is dangerous. However, it is known that it is a powerfully magical potion ingredient, since it is one of the constituents of the Potion of All Potential.
- Wonderbook: Book of Potions (First appearance)