Can be made ahead of time.

serves 12
You might need to buy:
  • medium-sized potatoes
  • milk
  • commercial sour cream
  • cream cheese
  • garlic salt
  • grated onion
  • butter
serves 6
You might need to buy:
  • medium baking potatoes
  • chopped fresh parsley
  • dried rosemary
  • grated Parmesan cheese