A hot dog is a type of cooked sausage, traditionally grilled or steamed and served in a partially sliced bun. This type of sausage was culturally imported from Germany and popularized in the United States, where it became a working-class street food sold at hot dog stands and carts. It is also sold at fast food restaurants and convenience stores, as well as being available for home preparation after being purchased at grocery stores. The hot dog became closely associated with baseball and American culture. Hot dog preparation and condiments vary regionally in the US.