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clear bowl containing brown demi glace next to 2 wooden spoons with fresh thyme sprigs on a white marbled countertop

Vegetable Demi-Glace

This vegetarian version of a demi-glace is sped up so any home chef can make it!
5 from 1 vote
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Course: Sauce
Cuisine: French
Diet: Vegetarian
Prep Time: 10 minutes
Cook Time: 2 hours 50 minutes
Total Time: 3 hours
Servings: 20
Author: Jennifer Parrott Hanes MS, RDN, LD

Ingredients

  • 1 large portobella cap
  • 1 large carrot
  • 1 celery stalk
  • 1 large onion
  • 1 small eggplant
  • 2 garlic cloves minced
  • 2-3 Tbsp olive oil
  • 2 Tbsp All-Purpose Flour
  • 2 Tbsp tomato paste
  • ¼ cup dry red wine
  • 2 sprigs fresh thyme
  • 2 sprigs fresh parsley
  • 1 bay leaf
  • 6 cups mushroom broth

Instructions

Roast the Veggies

  • Pre-heat oven to 425°F
  • Roughly chop all the veggies and add to a baking dish.
    1 large portobella cap, 1 large carrot, 1 celery stalk, 1 large onion, 1 small eggplant, 2-3 Tbsp olive oil, 2 garlic cloves
  • Roast veggies, stirring every 30 minutes or so, for about 90 minutes
  • Remove from oven, sprinkle veggies with the flour and stir in the tomato paste. until well combined
    2 Tbsp All-Purpose Flour, 2 Tbsp tomato paste
  • Bake for 10 more minutes.

Make the sauce

  • Place the vegetables in a large pot.
  • Pour the red wine into the baking dish and scrape up any frond (brown bits).
    1/4 cup dry red wine
  • Add the wine mixture and all of the remaining ingredients to the pot. Bring to a boil, then simmer for 1 hour.
    2 sprigs fresh thyme, 2 sprigs fresh parsley, 1 bay leaf, 6 cups mushroom broth
  • Strain the stock through a sieve into another pot. Make sure to press the veggies to get out all the juice.
  • Heat the liquid to boiling, and boil for 10 minutes, until the volume is reduce by half.
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Nutrition

Calories: 40kcal | Carbohydrates: 5g | Protein: 1g | Fat: 1g | Saturated Fat: 0.2g | Polyunsaturated Fat: 0.2g | Monounsaturated Fat: 1g | Sodium: 17mg | Potassium: 110mg | Fiber: 1g | Sugar: 2g | Vitamin A: 646IU | Vitamin C: 2mg | Calcium: 7mg | Iron: 0.2mg

*Nutrition Facts are an estimate only. Differences are expected when making substitutions for any ingredient or when different brands are used.

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