Au Gratin Potato Casserole Recipes

Learn how to make the best au gratin potatoes with help from our tips, how to videos and no-fail recipes.

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Parsnip Potato Gratin

Parsnips don't get much space in the produce section. But their subtle sweetness makes them worth the hunt.—Kerry Dingwall, Ponte Vedra, Florida

Crunchy au Gratin Potatoes

With its golden, crunchy topping and gooey, cheesy interior, this comforting spin on a classic side dish is brimming with...


Au Gratin Potatoes ‘n’ Leeks

I love making casseroles during the holidays. It made me a fan of Gruyere cheese for au Gratin dishes. —Rosalie...