A bouillon cube is a solid cube made from dried meat or vegetable juices and other flavorings. Bouillon cubes are used to add flavor to dishes such as stews and soups.
[US]regional note: in BRIT, use stock cube
bouillon cube in British English
(ˈbuːjɒn kjuːb)
noun
a stock cube
bouillon cube in American English
a small cube of concentrated stock for making bouillon