Ranch Salad Dressing

Ingredients

• 1 cup (225 ml) mayonaisse (do not use salad dressing)
• 3/4 cup (175 ml) sour cream
• 1/4 tsp (1 ml) garlic powder
• 1/4 tsp (1 ml) onion powder
• 1/2 tsp (2 ml) dried parsley
• 1 tsp (5 ml) dried chives
• buttermilk, to thin