Step one: Preheat oven to 350 degrees. Wash potatoes, place on pan and bake for approximately 30 minutes.
Step two: Mix mayonnaise, scallions, one tablespoon of parmesan cheese and pepper to taste.
Step three: Remove potatoes from oven and cool. Cut ends off of potatoes to allow them to stand up. Scoop out small portion from top of potato and fill with mayonnaise mixture. Top with remaining parmesan cheese. Return to oven and bake until cheese browns, about 5 minutes. Serve hot or room temperature.
Yield: 8 appetizer portions