Do I have to peel the potatoes?
Nope. I usually peel russets because the skin can get a little papery in a creamy casserole, but Yukon Gold skins are thin and totally fine if you like a more rustic vibe.
What is the best potato for scalloped potatoes?
Yukon Gold gives you naturally creamy texture and a little less starch drama. Russets get super tender and soak up sauce beautifully, just slice them evenly so they cook at the same pace.
Why are my scalloped potatoes still hard?
Three usual culprits: slices too thick, oven temp running cool, or the dish was not covered long enough. Aim for 1/8-inch slices, keep it covered for the first part of baking, and make sure the sauce is hot before it goes in. Also look for the sauce bubbling in the center, not just around the edges. Bake time can vary a bit depending on potato type and slice thickness.
Can I make this ahead?
Yes. Assemble the casserole up to 24 hours ahead, cover, and refrigerate. Before baking, let it sit at room temp for 30 minutes if you can, then bake (you may need an extra 10 to 15 minutes covered).
Can I use leftover holiday ham?
Absolutely. This dish feels basically invented for that. If your ham is very salty, go easy on added salt until you taste the sauce.
Can I skip the cheese?
You can. Traditional scalloped potatoes are often cheese-free. Just replace the cheddar with an extra 1/2 cup milk and add a little more seasoning (a pinch of smoked paprika is great).
What should I serve with scalloped potatoes and ham?
Something green and crisp is the move. A simple salad with a sharp vinaigrette, roasted broccoli, green beans, or sautéed spinach all bring nice contrast to the creamy, cozy situation happening in the casserole.