Put potatoes and eggs in a large pot to boil over a medium heat, when able to pierce potatoes with a fork then they are cooked. Drain water from potatoes and eggs. Take eggs out of pot and rinse with cool water until able to peel the eggs and set aside. Put potatoes into a large mixing bowl and mash potatoes with a potato masher. Also, at this time, mash the eggs with the masher then add the eggs to the bowl of potatoes. Add mayonnaise, mustard, season salt and black pepper to mixture and stir thoroughly.
Cajun Country -- New Iberia, Louisiana