Green Goddess Dressing

Name: Green Goddess Dressing
Prep time: 15 min
Total time: 15 min
Yield: 1.5 cups
Ingredients: Ingredients; 1 cup mayonnaise; 1/2 cup sour cream; 1/4 cup fresh chives, finely chopped; 1/4 cup fresh parsley, chopped; 2 tablespoons fresh tarragon, chopped; 2 green onions, finely chopped; 2 anchovy fillets, minced (or 1 teaspoon anchovy paste); 2 tablespoons fresh lemon juice; 1 tablespoon white wine vinegar; 1 clove garlic, minced; 1/2 teaspoon salt; 1/4 teaspoon freshly ground black pepper; 1/4 teaspoon onion powder