Preheat oven to 350 degrees F. Place potatoes in a 13x9 baking dish. In a saucepan, combine sugar, cornstarch, salt, and cinnamon; stir in nectar, water and orange peel. Bring to boil. Cook, stirring, for 2 minutes. Remove from heat; stir in butter. Pour over potatoes. Bake, uncovered, for 20 to 25 minutes.