Demi-glace

Demi-glace is a concentrated and traditional sauce from French cuisine that is used as a base for numerous gourmet preparations. It is made from a dark stock (reduced broth of bones and meat, usually beef or veal) that is combined with espagnole sauce and reduced until a thick texture and an intense, deep flavor are achieved.

The origin of demi-glace dates back to high French gastronomy, where it is fundamental in classical technique for enriching and giving body to sauces, stews, and meat dishes. Its preparation is laborious, as it requires a slow reduction process to enhance the flavors and achieve that characteristic consistency.

In terms of properties, demi-glace provides a very concentrated umami flavor, intensifying the aroma and complexity of the dishes it is added to. Furthermore, its thick texture helps give volume and shine to sauces. It is not an ingredient that is consumed directly, but rather is used in small quantities to accompany meats, poultry, and vegetables.

In the Spanish-speaking world, although there is no exact synonym, in some countries it is often referred to as demi-glace or simply "reduced stock" or "reduced sauce." It can also be found under the term concentrated stocks in professional culinary jargon. In simpler home kitchens, similar mixtures of broth bases and thick sauces are used to substitute this preparation.