A beef bouillon cube is a tightly compressed beef stock that is used to replicate beef stock. It is a flavoring made of beef stock or beef-flavored stock, vegetables, herbs, and spices. Bouillon cubes are dehydrated stock packaged in an easy-to-use block form. Typically, they are made up of dehydrated meat and/or vegetables, MSG, salt, and various seasonings. Beef bouillon cubes are one of the easiest forms of bouillon to find. The bouillon is tightly packed dry ingredients in the shape of a cube or brick. These cubes are usually individually wrapped, dry, and crumble easily in your hand. Beef bouillon cubes dissolve easily and thoroughly into hot liquid. Bouillon cubes are used to add flavor to soups and sauces, as a substitute for stock, and to thicken and spice a curry. They can also be dissolved in water to make broth.