Leeks look like large scallions with the same small white bulb and long, green, tightly wrapped, flat leaves. It comes as no surprise that they are related to garlic, onions, shallots, and scallions. The flavor of the leek is similar to shallots but slightly sweeter and more subtle.
Leeks can be enjoyed in salads, soups and stews, or sautéed with other vegetables for a healthy side dish. Be sure to slice thinly then soak in water before cooking since the layers can tend to catch soil making washing difficult. Here is a great video showing how to clean and prepare leeks: Cleaning Leeks
Like other allium vegetables, leeks contain many sulfur compounds that aid in our body’s antioxidant and detox systems. They are also a very good source of manganese and a good source of vitamin C, iron, folate, and vitamin B6. (WH Foods)