French Old Fashioned Mustard - cooking recipe

Ingredients

1/2 cup white mustard seeds
1 tablespoon dry mustard
1/2 cup cold water
1/2 cup white wine vinegar
1/2 cup dry white wine
1 small onions or 1/2 cup shallot, chopped
2 cloves garlic, minced
1 bay leaf
1 teaspoon salt
1 teaspoon sugar
1/2 teaspoon dry tarragon
1/8 teaspoon ground allspice
1/8 teaspoon ground turmeric

Preparation

Combine mustard seeds, dry mustard and cold water; and soak for 3 hours and set aside.
Combine the rest of the ingredients in 1 to 2 quart non reactive pan, and simmer for 10 to 15 minutes, uncovered, over medium heat until reduced by half.
Pour liquid through wire strainer into mustard seed mixture then whirl in blender until coarsely ground.
Cook in top of double boiler over simmering water for 8 to 12 minutes, stirring occasionally, until thickened. Let cool, pack into jar or crock, and cover tightly.