How to Make Demi-Glace - A Step-by-Step Guide

Demi-glace is a rich and flavorful sauce that is an essential component of classic French cuisine. It is a reduction of veal stock and brown sauce, with the addition of red wine and various aromatics and herbs. The resulting sauce is velvety, intense, and versatile, making it a popular choice for chefs and home cooks alike.

Although demi-glace can be time-consuming to make, the end result is well worth the effort. With its deep, savory flavor and luxurious texture, demi-glace is a ver...

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Ingredients

  • 10 pounds veal bones (joint and marrow bones)
  • 1 tablespoon vegetable oil
  • 3 medium onions, cut into eighths
  • 4 medium carrots, cut into 2-inch pieces
  • 4 ribs celery, cut into 2-inch pieces
  • 1 (6 ounce) can tomato paste
  • 10 quarts cold water
  • 2 cups cold water

Information

  • Prep Time: 40 mins
  • Cook Time: 20 hrs
  • Additional Time: 8 hrs 30 mins
  • Total Time: 1 day 5 hrs 10 mins
  • Servings: 32
  • Yield: 16 1-cup blocks

  • Preheat the oven to 450 degrees F (230 degrees C). Place veal bones in a roasting pan.
  • Roast bones in the preheated oven until well-browned, about 1 hour 15 minutes.
  • While the bones are roasting, drizzle oil onto a baking sheet. Add onions, carrots, and celery, then spread tomato paste over top. Mix until vegetables are well coated.
  • Roast vegetables on another rack in the oven until well-browned, about 45 minutes.
  • Transfer vegetables and bones to a large stockpot. Pour 10 quarts water into the stockpot and set over medium-high heat.
  • Meanwhile, pour 2 cups water into the roasting pan used for the bones. Set the pan on the stovetop over high heat; bring liquid to a boil while scraping the browned bits of food off of the bottom of the pan with a wooden spoon. Pour liquid and browned bits into the stockpot.
  • Bring contents of the stockpot to a boil, then reduce the heat to low and simmer gently, skimming foam as necessary, until meat and all connective tissues are completely off the bones, about 18 hours.
  • Set a colander over a bowl. Ladle vegetables, bones, and meat into the colander. Discard vegetables, bones, and meat; return any broth to the stockpot.
  • Bring broth to a boil. Boil until broth reduces to approximately 1 gallon in volume, 30 minutes to 1 hour.
  • Strain broth through a fine-mesh strainer into a large container set in an ice bath; chill to room temperature, 30 to 45 minutes. Cover the container with a lid or plastic wrap, then chill in the refrigerator until demi-glace is cold and set, 8 hours to overnight.
  • Scrape and discard any fat from the surface. Turn demi-glace out onto a work surface. Cut into 16 blocks. Wrap each block in plastic wrap and store in a resealable plastic bag in the freezer.
  • Nutrition

    17 cal.

    • Total Fat: 1g
    • Saturated Fat: 0g
    • Sodium: 63mg
    • Total Carbohydrate: 3g
    • Dietary Fiber: 1g
    • Protein: 1g
    • Vitamin C: 3mg
    • Calcium: 19mg
    • Iron: 0mg
    • Potassium: 117mg