Nøkkelost (Norwegian: "key cheese"), also seen in Swedish spelling as Nökkelost and sometimes called kuminost (cumin cheese), is a Norwegian cheese flavored with cumin, caraway seeds and cloves. It is semi-hard, yellow, and made from cow's milk. It is made in the shape of wheels or blocks. Nøkkelost cheese is a factory-made variation of Leiden cheese, and has been made since the 17th century. Its period of maturation is 3 months. Nøkkelost is expensive and somewhat rare.

There was a version of Nøkkelost manufactured and marketed in the US throughout the 1960's. Kraft Foods first called it "Caraway" then later used "Kuminost Spiced Cheese" on the label. It disappeared in the late 1970's

Sources

• Description at Cheese.com
• Description at Food Network