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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Winter Vegetable Gratin

You’ll find this creamy gratin gives you all the rich flavors you crave in a cold-weather meal. Use a mandolin cutter on the root vegetables to speed up preparation.—Rachel Dueker, Salem, OR

Sweet Potatoes au Gratin

This rich, sweet potato casserole couldn't be any easier to make—or more delicious to eat! —Patti Kirchhoff, Lake Geneva, Wisconsin