Demi Glace is a stock that has been reduced by 2/3rds. Sauce Espangnole is brown veal stock thickened with a roux, with tomato paste, carrots, celery and onion, reduced by 2/3rds.
The sauce made from reducing espagnole to produce a concentrated product is called "demi-glace." Demi-glace is typically achieved by combining equal parts of espagnole sauce and brown stock, then simmering until it thickens and intensifies in flavor. This rich sauce is often used as a base for other sauces or as a flavorful addition to various dishes. Its deep, complex taste enhances meats and can elevate the overall profile of a dish.
derivation of demi glace
If you are referring to the Five Mother Sauces, then, brown stock can be made into Espagnole sauce, by adding roasted mirepoix (onions, carrots, and celery), as well as a rich brown stock, and a dark roux... Tomato can also be added, if desired. Once you have made the Mother Sauce, there are many derivatives that can be made, such as: Demi-Glace (a reduction of Espagnole, that is much more flavorful), you can add Mushrooms, and Sauce Diable (which is the Demi-Glace, with chiles, tarragon vinegar, and shallots added)... You can pretty much add any of your favorite ingredients to the Espagnole, to create your own sauces.
Chef Sonnenschmidt refers to demi-glace sauce as a "culinary cornerstone" due to its rich flavor and versatility in French cuisine. This classic sauce is a concentrated mixture of equal parts brown stock and sauce espagnole, simmered to achieve a deep, complex taste. Its ability to elevate dishes and serve as a base for other sauces highlights its importance in professional kitchens. Ultimately, demi-glace embodies the artistry and tradition of classical cooking.
state 3 semi-glace derivates
A demi-glace is a brown cooking sauce that gives a sauce a base. The term glace means glaze. One of the ingredients is stock, be it beef, chicken, and sometimes veal.
The glaze made from reduced stock that has a jelly-like consistency is known as a "demi-glace." It is traditionally made by combining equal parts of a rich brown sauce (like Espagnole) and a stock, then simmering it down until it thickens. This process intensifies the flavors, resulting in a glossy, flavorful glaze often used in sauces for meats. Demi-glace is a staple in classical French cuisine.
50 grams
A suitable substitute for veal demi glace in recipes is a combination of beef broth and red wine reduced down to a thick, flavorful sauce.
Demi-glace
A suitable substitute for beef demi glace in a recipe is a combination of beef broth and a reduction of red wine or balsamic vinegar to add depth and richness to the dish.
Bordelaise sauce is a classic French sauce made with red wine, bone marrow, shallots, and demi-glace. It is traditionally made by reducing red wine with shallots, adding demi-glace and bone marrow, and simmering until thickened.