Classic Sauce Robert

Classic Sauce Robert

Learn to make classic sauce Robert, a French sauce made with onions, mustard and white wine simmered in a basic demi-glace to perfection.
  • Preparation:
  • Cooking:
  • Total:
  • Serves: 8 persons

Ingredients

Instructions

  1. Step 1

    Gather the ingredients.
  2. Step 2

    In a small bowl, combine sugar and lemon juice, and stir until the sugar is dissolved.
  3. Step 3

    In a heavy-bottomed saucepan, melt butter and cook onions over medium heat until soft and translucent. Don't let them turn brown.
  4. Step 4

    Add wine . Bring to a boil, then lower the heat a bit and continue simmering until the liquid has reduced by two-thirds.
  5. Step 5

    Add demi-glace, then lower heat to a simmer and reduce for about 10 minutes.
  6. Step 6

    Strain through a mesh strainer.
  7. Step 7

    Add mustard and the sugar-lemon mixture, and mix well. Serve immediately.