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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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    Carrot, Parsnip and Potato Gratin

    Thanks to a challenge in the TOH community a few years back, my husband and I tried parsnips and discovered that we liked them! In fact, I started growing them in my garden and have been trying new things with them. This recipe is one of my experiments, and it turned out to be something we really enjoy! —Sue Gronholz, Beaver Dam, Wisconsin

    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...