Combine some milk and the beaten eggs in a mixing bowl. Then season [salt is important] the panko bread crumbs with salt and pepper in another bowl. Place some wondra flour in another. This is your "Coating Station".
Pre-heat about an inch of oil in a skillet to 350 to 375 degrees.
Using a mellon-baller [no larger than an inch-and-a-half], create balls from the chilled mashed potatoes.
Coat the potato balls this way: 1] egg, 2] wondra flour, 3] egg, and 4] seasoned panko. Deep fry until golden brown & serve hot!