A Potato is a farm-able food source that was released in 1.4.2 - The Pretty Scary Update, and it is one of the six crops that grows on tilled farmland. Potatoes have three states: Raw Potatoes, Baked Potatoes, and Poisonous Potatoes. When planted, potatoes grow much like wheat. To plant potatoes, right click on farmland with a potato in hand since the seed is the potato itself. When potatoes are cooked in a furnace, they will turn into baked potatoes.
A fully grown potato plant can drop up to four potatoes, and have a small chance of additionally dropping a poisonous potato. Occasionally, potatoes have a small chance of being dropped by a Zombie after it is killed. Potato plants can be found on about 20% of Village farmland plots.