Because Austrian roasted pumpkin seed oil, a current favorite in American restaurant kitchens, becomes acrid when it's heated, it's best not to cook it.
Combine all of the ingredients in a bowl.
Make Ahead: The vinaigrette can be refrigerated overnight. Serve at room temperature.
Serve With: Grilled shrimp; shrimp or vegetable dumplings; chicken salad; avocado-tomato salad; boiled rice noodles
Notes: Roasted pumpkin seed oil is available at specialty food stores.