Creamy Garlic Dressing

Bahan-bahan (4 porsi)

• ½ cup mayonnaise
• ¼ cup sour cream
• 1 tablespoon white wine vinegar
• 2 tablespoons olive oil
• 2 tablespoons chopped fresh parsley (or 2 teaspoons dried parsley)
• 1 clove garlic (minced or more to taste)
• ½ teaspoon onion powder
• salt and pepper to taste