mustard sour cream dressing

1/2 cup red wine vinegar
1/2 cup sour cream
1/2 cup dijon mustard
2 tsp sugar
2 garlic cloves, peeled
1/2 tsp salt
1/4 tsp white pepper
1/4 tsp Worcestershire sauce
1 1/2 cup vegetable oil

pPace first 8 ingredients in blender and process until smooth. while processing, gradually add oil in steady stre.  Transfer to a bowl or pitcher. Cover and refrigerate until serving.