Purple Apple Slaw with Peanut Butter Dressing

6 tablespoons rice wine vinegar

6 tablespoons olive oil

5 tablespoons creamy peanut butter

3 tablespoons soy sauce

3 tablespoons brown sugar

2 tablespoons minced fresh ginger root

1 ½ tablespoons minced garlic

½ head red cabbage

finely shredded

2 Braeburn or Fuji apples - peeled

cored

and finely diced

¼ cup finely minced white onion