Boil potatoes whole until fork tender (about 15 minutes), drain and allow to cool for 10 minutes. Cut into quarters and place in a large bowl, and pour white wine over top. Set aside to allow potatoes to soak up wine for about 15 minutes.
Whisk together remaining ingredients until smooth.
Pour off and discard any wine that was not absorbed, then pour in dressing and toss gently to coat.
Serve warm or cold.
Notes
This vinaigrette makes a great salad dressing as well!