I'm showing you how to serve an amazing holiday meal to a crowd using only 1 pound of ham, which is one way to go if the budget is a little tight. Or, if you do end up serving a whole ham, this recipe is perfect for the leftovers.
4 ½ pounds russet potatoes, peeled and sliced 1/4 inch thick
8 ounces grated sharp white Cheddar cheese
1 pound thinly sliced ham
Steps
Preheat the oven to 350 degrees F (175 degrees C).
Heat butter in a pot over medium heat. Add onions and sauté with a pinch of salt until translucent, about 5 minutes. Add flour and cook, stirring, just to take off that starchy, raw edge, about 2 minutes. Pour in heavy cream and whisk to combine. Whisk in milk. Cook, stirring, over medium-high heat until it just starts to simmer and thicken up. Add 1 teaspoon salt, pepper, and cayenne. Grate in nutmeg.
Turn off heat. Stir in Worcestershire and fresh thyme leaves. Reserve until needed.
Cover the bottom of a deep 10x15-inch casserole dish with about 25% of the reserved sauce. Add a layer of sliced potatoes, seasoning the tops with some of the remaining salt as desired; ladle over 1/3 of the sauce and sprinkle over 1/3 of the grated Cheddar cheese. Layer in ½ of the sliced ham.
Place another layer of sliced potatoes on top and season with salt. Ladle over ½ of the remaining sauce; repeat layering with Cheddar cheese and ham.
Place last layer of potatoes on top. Ladle over remaining sauce and spread out with a spatula. Sprinkle over remaining Cheddar cheese.
Bake uncovered in the preheated oven until browned, bubbling, and potatoes are very tender, about 1 ½ hours. Let cool for 15 to 20 minutes before serving.