Buttermilk Salad Dressing - cooking recipe

Ingredients

2 cups buttermilk
2 cups mayonnaise
1 tablespoon onion powder
1 tablespoon dried parsley flakes
1 1/2 teaspoons garlic powder
1/2 teaspoon salt
1/2 teaspoon celery salt
1/4 teaspoon black pepper

Preparation

In large bowl, whisk all ingredients until smooth.
Cover and refrigerate until serving.