Aw Maw'S Potatoes
["4 lb. unpeeled potatoes", "cooking spray", "1/3 c. butter", "3 c. milk", "2 c. shredded sharp Cheddar cheese, divided", "2 tsp. salt", "freshly ground black pepper"]
["Place potatoes in Dutch oven and cover with water. Bring to boil, reduce heat and simmer for 20 minutes or until tender; drain. Cover and chill. Preheat oven to 350\u00b0."]
["potatoes", "cooking spray", "butter", "milk", "Cheddar cheese", "salt", "freshly ground black pepper"]