Vidalia Onion Dip By: Wolf Here's an easy recipe for a Vidalia Onion Dip that is very good with either Ruffle Potato Chips or Pringles. 1 Vidalia onion - chopped fine 1 cup real mayonnaise 1 cup grated Parmesan cheese Mix all ingredients well and put into a small casserole dish lightly sprayed with a non-stick spray. Sprinkle lightly with Paprika. Bake for 25 minutes at 350 degrees. Let cool and enjoy.