Leeks are a member of the Allium family, closely related to onions, garlic, and shallots. Known for their mild, sweet flavor, leeks are a versatile vegetable used in a variety of culinary dishes, particularly in European and Mediterranean cuisines. Unlike onions, which have a more pungent taste, leeks offer a subtle, slightly sweet onion-like flavor when cooked, making them ideal for soups, stews, and other savory dishes. They are prized for their crisp, tender texture and delicate flavor, which enhance the taste of many recipes without overpowering other ingredients.
Leeks are typically tall, with long, cylindrical stalks that are made up of overlapping green and white layers. The white portion is tender and edible, while the green leaves are typically tougher but can be used for flavoring broths and stocks.