2 tablespoons yellow mustard seed
1/2 tablespoon dry mustard
2 tablespoons water
2 tablespoons white wine
1 tablespoon white wine vinegar
1/4 teaspoon salt
1/8 teaspoon ground turmeric

Grind mustard seed to a fine consistency. Mix ground mustard with dry mustard powder and water in a small bowl. Cover with plastic wrap, and set aside overnight.

Combine mustards with wine, vinegar, salt and turmeric in a blender or mini food processor. Pur? until smooth. You can use mustard immediately. It will keep up to 3 months in the refrigerator.