3 golden potato and apple gratin Recipes

red bliss potatoes, thinly sliced, golden delicious apples, cored and thinly sliced, pancetta, browned and crumbled, snipped fresh chives, ouces cave-aged gruyere or 8 oz mild swiss cheese, grated, heavy cream, salt, pepper, butter , cut into tiny cubes, grated nutmeg, aluminum foil, to cover

cream, dijon mustard, salt, pepper, russet potatoes or 2 lbs yukon gold potatoes, tart apple (granny smith, crispin, or northern spy), parmesan cheese, freshly grated