This document outlines the structure and components of sauces, including the five mother sauces. Sauces are comprised of a liquid base, thickening agent, and additional seasonings and flavors. Common liquid bases include stocks, milk, and butter. Thickening agents include roux, beurre manie, and purees. The five mother sauces are Béchamel, Velouté, Espagnole, Hollandaise, and Tomato. Béchamel is made from milk and roux, while Velouté uses white stock and roux as the base. These mother sauces can be elaborated on to create numerous derivative sauces.