Sprinkle on 1/3 of the ham/onion mixture, then 1/3 of the … Using a mandoline or slicer, slice potatoes into 1/8-inch slices (very thin.) My readers are raving about this never fail scalloped potatoes … https://www.food.com/recipe/scalloped-potatoes-and-ham-5194 Easy homemade Scalloped Potatoes and Ham recipe – creamy, cheesy sauce, chunks of ham (works perfectly ham leftovers) and thin cut potato layers, make this dish a crowd pleaser. https://www.tasteofhome.com/recipes/scalloped-potatoes-with-ham Layer 1/3 of the potato slices in the buttered casserole dish.