To prepare ranch dressing you'll need, mayonnaise, sour cream, buttermilk, garlic powder, onion powder, salt, and black pepper.
In a large bowl, combine the mayonnaise, sour cream, and buttermilk and whisk them together.
Now it's time to add the flavor! Stir in garlic powder, onion powder, salt and black pepper.
If you prefer a thicker ranch dressing, add a little more mayonnaise or sour cream.
Taste your ranch dressing and adjust the seasoning according to your liking.
For the best taste, refrigerate your ranch dressing for at least 30 minutes.
Once your ranch dressing is ready, serve it alongside chips, fries or fresh salad.