Homemade Ranch dressing

1 cup mayonnaise ½ cup sour cream ½ teaspoon dried chives ½ teaspoon dried parsley ½ teaspoon dried dill weed ¼ teaspoon garlic powder ¼ teaspoon onion powder ⅛ teaspoon salt ⅛ teaspoon ground black pepper Got this from Allrecipes - Ginny's favorite!