Culture & Lifestyle • Cooking

Demi-glace

Demi-glace is a rich brown sauce in French cuisine, traditionally made by reducing brown stock with espagnole sauce.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Demi-glace is a rich brown sauce in French cuisine, traditionally made by reducing brown stock with espagnole sauce. It is used on its own or as a base for other sauces, soups, and stews. The term comes from the French word *glace*, meaning a glaze or icing when used for sauce.

Definition and origin

Demi-glace is a classic French brown sauce whose name means "half-glaze." It is a concentrated preparation associated with traditional French haute cuisine and the sauce espagnole lineage. Britannica notes that demi-glace stems from *sauce espagnole*, one of the classic French mother sauces.

Preparation

The traditional method combines espagnole sauce and brown stock in equal parts and reduces the mixture by half. Some modern versions simplify the process by reducing brown stock directly, sometimes with mirepoix and aromatics. It is commonly associated with veal stock, but beef and other brown stocks are also used.

Culinary use

Demi-glace is used as a finishing sauce for meats and as a flavour base for other sauces, soups, and stews. Its concentrated flavour and gelatinous texture make it useful for adding depth to dishes.

Demi-glace is closely related to espagnole sauce, one of the classic French mother sauces. It is often discussed alongside glace, a more highly reduced and concentrated sauce.

Key facts

Demi-glace is a concentrated, rich brown sauce used directly or as a base for other sauces.
It is traditionally made by combining equal parts espagnole sauce and brown stock, then reducing by half.
The name means "half-glaze" in French.
Modern versions may reduce brown stock directly instead of using espagnole sauce.
It is commonly associated with veal stock, but beef and other brown stocks are also used.

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Canadian context

Demi-glace is used in Canadian French and broader Canadian restaurant cooking as part of classical French culinary technique, especially in fine dining and sauce-based meat dishes.

Frequently asked questions

What is demi-glace?

A rich brown French sauce made by reducing brown stock, traditionally with espagnole sauce, until concentrated.

What does demi-glace mean?

It literally means "half-glaze" in French.

How is demi-glace made?

Traditionally, it is made by combining equal parts espagnole sauce and brown stock, then reducing the mixture by half.

What is demi-glace used for?

It is served on its own or used as a base to enrich other sauces, soups, and stews.

Is demi-glace the same as glace?

No. Demi-glace is less concentrated; glace is reduced further and is thicker and more intensely concentrated.

References

Wikipedia — https://en.wikipedia.org/wiki/Demi-glace
Supports: Traditional definition, meaning, and classic preparation using espagnole sauce and brown stock
Encyclopaedia Britannica — https://www.britannica.com/topic/demi-glace
Supports: Definition, culinary use, relation to sauce espagnole, and ingredients
Merriam-Webster — https://www.merriam-webster.com/dictionary/demi-glace
Supports: Dictionary definition as a concentrated reduced brown sauce used as a base for other sauces
Wikipedia — https://fr.wikipedia.org/wiki/Demi-glace
Supports: French-language overview noting traditional reduction of sauce espagnole and modern stock-based preparation
The Spruce Eats — https://www.thespruceeats.com/glace-and-demi-glace-definitions-and-uses-995698
Supports: Definition and distinction between demi-glace and glace