1. Combine the potatoes in a Farberware Neat Nest 10.5" Nonstick Skillet with enough water to cover. Bring to a boil over medium heat and cook until very tender, about 18-20 minutes. Drain the potatoes in a colander; transfer to a bowl and mash until smooth.
2. Melt the butter in the skillet over medium heat. Add the mashed sweet potatoes and salt; cook, stirring constantly until heated through, about 1 minute. Remove from the heat and stir in the orange zest.