Describe your suggestion.
Real life peat is made of partially decomposed plant matter. Mixing mud with fresh leaves would get you close enough for Minecraft's standards. I suggest two shapeless recipes:

Mud block + any leaf block = peat block

Peat block + dirt = 2 peat dirt

Additional context
Vanilla mud blocks are renewable. This would make all forms of peat renewable by extension.

ooh i like this idea! ill definitely put it on the roadmap!

pinned for future use