Ranch Yogurt Dip

Ingredients

• 1 cup fat-free plain yogurt
• 2/3 cup fat-free sour cream
• 1/3 cup reduced-fat mayonnaise
• 1 tablespoon dried parsley flakes
• 1 tablespoon minced chives
• 1 tablespoon cider vinegar
• 1 teaspoon sugar
• 1 teaspoon onion powder
• 1 teaspoon garlic powder
• 1/2 teaspoon salt
• 1/2 teaspoon celery seed
• 1/2 teaspoon ground mustard
• 1/4 teaspoon white pepper
• Assorted fresh vegetables