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 online 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, including this recipe. —Sue Gronholz, Beaver Dam, Wisconsin

Potatoes and Carrots Au Gratin

I found this recipe in a local farm publication. I guess that's fitting, because whenever I make it, I use...