
Beef consommé is a clear, clarified beef broth; beef bouillon is the closely related simmered savoury liquid, also sold as a reconstituted dehydrated cube.
Meaty, roasted-beef umami dominates, carried on a savoury salt load with no sweetness, acidity or bitterness; light-bodied with a warm, brothy aroma.
Dosed by the small measure to a full pour depending on the build, it supplies savoury, salty umami and light body to a drink. Purchased canned consommé and bouillon cubes are heavily salted, so the salt load rather than any sweetness governs seasoning and can quickly over-salt a mix; it is added and stirred rather than shaken.
As the defining savoury base of a drink it is essentially replaceable only by another beef broth or consommé, since only a beef-based stock reproduces the specific roasted-beef umami; as a small seasoning accent, another savoury stock or a salted umami liquid can stand in, rebuilding lost volume and body with water plus seasoning at some loss of the beef character.
Beef broth / beef stock / beef bouillon
Consommé is broth that has been clarified to full transparency and intensified in flavour, while plain broth, stock or bouillon is unclarified and cloudier. Bouillon may also refer to a reconstituted dehydrated cube rather than a fresh simmered liquid.
Consommé is produced by clarifying beef broth or stock, traditionally with a "raft" of egg white and minced lean meat that coagulates and traps suspended particles, leaving a transparent liquid. Bouillon and stock are the unclarified simmered liquids from which it comes, made by cooking meat, bones and vegetables in water; bouillon is also sold dehydrated as cubes or powder for reconstitution and is typically high in salt. All are non-alcoholic aqueous savoury liquids.
As a fresh animal-protein liquid, unpackaged beef broth or consommé is perishable and must be refrigerated, unlike shelf-stable mixers.