Whisk the ingredients together in a small bowl or puree in a blender. Alternately, you can combine ingredients in a jar with a tight fitting lid and shake to combine.
Taste and adjust seasoning if desired.
Store in an airtight container in the refrigerator for up to 1 week.
Notes
Makes about 1 cup.
Use a microplane or the small holes on a box grater to grate the ginger.
Adding the dijon mustard will help keep the dressing emulsified, preventing it from separating.