Compound butters (
French: beurre composé, pl. beurres composés) are mixtures of
butter and other ingredients used as a flavoring, in a fashion similar to a
sauce.[1][2][3]
Compound butters can be made or bought. A compound butter can be made by whipping additional elements, such as herbs, spices or aromatic liquids, into butter. It is usually re-formed and chilled before being melted on top of meats and vegetables, used as a spread, or used to finish sauces.