Heres my triedandtrue version of scalloped potatoes. I slice them extra thin and toss them in a rich, creamy cheese sauce. Then, to make them the best ever, I. Bacon Cheddar Beer Potatoes Au Gratin are your favorite rich and creamy potatoes taken to a whole new level with bacon, cheese and beer. Get Scalloped Potatoes Gratin Recipe from Cooking Channel. Potatoes gratin is one of the most common of gratins and is known by various names including gratin potatoes and Gratin de pommes de terre. An easy recipe for slow cooker potatoes au gratin simple and delicious comfort food. Plus a secret tip to keeping the potatoes crispier in the crockpot.