The yellow onion is the most well-known and most eaten onion in the world. The Netherlands is the largest exporter of yellow onions worldwide, exporting around 1,000,000 tons of them annually.
The name onion (also called "ajuin" or "juin" in the southern Netherlands and Flanders) is usually used for Allium cepa, also called the garden onion. It is a plant in the allium family (Alliaceae).
Onions have a strong taste and odor, which diminishes when heated.
They generally have a papery outer layer over a layered core.
