"I enjoy entertaining and always look for recipes that can be made ahead of time. I got this comforting potato recipe from my mother-in-law. It's wonderful because I can prepare it the night before. It contains basic ingredients that everyone loves like milk and cheddar cheese." Beverly Templeton Place potatoes in a large kettle; cover with water. Add 1/2 tsp. salt; cook until tender. Drain; mash potatoes until smooth. In a saucepan, cook and stir butter, cheese, milk and remaining salt until smooth. Stir into potatoes; fold in eggs. Pour into a greased 3-quart baking dish. Bake, uncovered, at 350 degrees for 40 minutes or until puffy and golden brown. Sprinkle with chives if desired. Note: The casserole may be covered and refrigerated overnight. Allow to stand at room temperature for 30 minutes before baking.