Onion is a growable food from planting Onion Seeds. She has 3 stages of growth.
2012-05-03 20.24.28 crop

Fully matured Onion plant.

When she gracefully enters adulthood, she can be harvested for one Onion. The Onion cannot be consumed directly, but can be used as in ingredient in Guacamole, Salad,

Seeds can be obtained from harvesting an Onion plant or using a foraging stick on tall grass.