Ingredients

  • 1 12 cups white grape juice, fresh
  • 1 cup dry white wine
  • 1 12 tablespoons white wine vinegar
  • 1 teaspoon salt
  • 14 teaspoon white pepper
  • 1 large shallot, very finely chopped
  • 23 cup mustard powder
  • 1 tablespoon olive oil
  • 1 teaspoon honey, to taste

Method

  • In a saucepan, combine 1 cup of the grape juice, the wine, vinegar, salt, pepper and shallot.
  • Place over medium heat and cook until reduced by half.
  • In another saucepan, simmer the remaining 1/2cup grape juice over medium-low heat for 5 minutes.
  • Set aside.
  • Place the mustard powder in the container of a blender.
  • With the motor running, and using a fine-mesh sieve, strain the wine-and-juice reduction through the lid opening of the blender.
  • Add the oil and blend for a few more seconds.
  • Scrape the mustard into a bowl and let stand 1 hour.
  • Correct the texture and seasoning by adding 1 teaspoon at a time of the reserved grape juice and a little honey.
  • Keeps refrigerated for 1 month.