This is the ultimate cheesy scalloped potatoes recipe, perfect for Christmas dinner. It’s incredibly creamy, rich, and has a golden, bubbly cheese crust that will convert even the biggest skeptics.
For best results, use freshly grated cheese and a mandoline for even potato slices. The resting period after baking is crucial for the sauce to set. To make ahead, assemble the dish (without topping) up to 24 hours in advance, refrigerate, then add topping and bake, adding 10-15 minutes to the cook time.
Keywords: scalloped potatoes, cheesy potatoes, Christmas side dish, holiday side dish, creamy potatoes, Yukon Gold potatoes, cheddar, Gruyère, make-ahead