Potatoes Au Gratin
["3 large potatoes, scrubbed and sliced thin", "1 large red or yellow onion, grated", "1 1/2 c. grated Cheddar cheese", "pepper to taste", "1/2 c. milk or cream", "4 Tbsp. butter"]
["In a very well buttered pan, alternate layers of potatoes, onion, cheese and salt and pepper until the pan is full.", "Pour milk or cream over all; dot with butter.", "Cover the pan with foil or lid.", "Begin cooking over medium heat until cover is very hot to touch (about 20 minutes).", "Reduce heat to low; cook about 25 minutes more.", "Take cover off; cook additional 5 to 10 minutes."]
["potatoes", "red", "Cheddar cheese", "pepper", "milk", "butter"]