Mezzaluna

A mezzaluna ( MET-sə-LOO-nə, Italian: [ˌmɛddzaˈluːna]) is a knife consisting of one or more curved blades with a handle on each end, which is rocked back and forth chopping the ingredients below with each movement. They most commonly have a single blade, but are sometimes seen with two or three blades. Mezzalunas may be found sold with a cutting board that has a shallow indentation in it, marketed as a herb chopper.