From the Bunny Master Title quest introduced in the The Madness of Men event.

File:Purpleeep.JPG Purple Marshmallow Eep
Value 1
Burden 2
Related Quests Bunny Master Title
Obtained By Random loot trophy from the Purple Grimacing Rabbits in Larry's Garden
Notes Consume to regenerate 4 stamina or use in Cooking

All types of Eeps can be used to make Hot Cocoa with Marshmallows using cooking skill.