Potatoes au gratin, how to make them the night before serving?

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Merrill S. November 23, 2011
These are actually great for making ahead. Cook them tonight until they are just about done (the potatoes should still put up a bit of resistance when you pierce them with a sharp knife). Cover and refrigerate. Tomorrow, reheat/finish cooking them in a 350-degree oven for 20-30 minutes. Happy Thanksgiving!
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