Broth is a liquid food preparation, typically consisting of water, in which bones, meat, fish, cereal grains, or vegetables have been simmered. Broth is used as a basis for other edible liquids such as soup, gravy, or sauce. It can be eaten alone or with garnish. If other ingredients are used, such as rice, pearl barley or oats, it is then generally called soup. Commercially prepared liquid broths are available, typically for chicken broth, beef broth, and vegetable broth.