Swamp hut/Structure

Witch Hut
Witch huts generate in swamp biomes. Among all hostile mobs, only witches spawn in the 7x7x9 area inside and around the hut. There is one empty cauldron, one crafting table and one potted red mushroom inside each hut. However, in 1.8 the flower pot contains no mushrooms. This structure is from 1.9 so it will have the pot and mushroom.

Layer 6
(Add a mushroom in the flower pot)