Onions and garlic are mainstays of most kitchens, but many cooks have never touched a leek. Like their better-known cousins, leeks belong to the allium family. Leeks look like giant green onions and can stand in for onions in many dishes.
The early Greeks and Romans were fond of leeks, thinking they were good for the voice.
Health Benefits
Leeks are rich in flavonoids, especially one called kaempferol.