Cheez-It is a brand of cheese cracker manufactured by the Kellogg Company through its Sunshine Biscuits division. Approximately 26 by 24 millimetres, the rectangular crackers are made with wheat flour, vegetable oil, cheese made with skim milk, salt, and spices.
Cheez-It crackers were introduced in 1921 by the Green & Green Company, a manufacturer of snack crackers based in Dayton, Ohio, and were marketed using the tagline "A Baked Welsh rarebit." Sunshine Biscuits acquired Green & Green in 1932. Sunshine Biscuits became a subsidiary of the Keebler Company in 1996. Keebler, in turn, was acquired by Kellogg in 2001.