Servings: Makes 2 1/2 cups
Ingredients 1 1/2 cups buttermilk or plain whole-milk yogurt1 cup mayonnaise1 to 2 tablespoons cider vinegar1 tablespoon dehydrated onion flakes1/2 teaspoon salt1/2 teaspoon freshly ground black pepper
In a medium bowl, whisk together all ingredients until smooth. Cover and refrigerate at least 30 minutes before serving, or up to 1 week. Stir before using.