One of the most important ingredients in the kitchen, onions are used in just about every nation’s cuisine, adding a depth of flavour to dishes, although they are a delicious vegetable in their own right. Onions grow as single bulbs (globe) or in clumps (aggregate), though most onions sold in the West are single bulbs. They are sold as either dry onions or green onions. Dry onions are left in the ground to mature where they develop a papery brown skin; green (spring or salad) onions are pulled out while young and the bulb is still small. Onions are also sold dried, as flakes, in a powder–like onion salt or as fried flakes.