A bouillon cube is dehydrated broth or stock formed into a small cube or other cuboid shape. The most common format is a cube about 13 mm wide. It is typically made from dehydrated vegetables or meat stock, a small portion of fat, MSG, salt, and seasonings, shaped into a small cube. Vegetarian and vegan types are also made. Bouillon is also available in granular, powdered, liquid, and paste forms.

Broth, also known as bouillon, is a savory liquid made of water in which meat, fish, or vegetables have been simmered for a short period of time. It can be eaten alone, but it is most commonly used to prepare other dishes, such as soups, gravies, and sauces.