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    TaraTeaspoon » Recipes » Side Dishes

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    Two Potatoes au Gratin with Gruyere

    Published: Nov 3, 2023 · Updated: Aug 22, 2024 by Tara Teaspoon

    Jump to Recipe Jump to Video Pin Recipe
    stunning cheese and herb potato gratin in cast iron pan
    TWO POTATOES AU GRATIN WITH GRUYERE
    TWO POTATOES AU GRATIN WITH GRUYERE

    This Potatoes au Gratin with Gruyere uses both sweet potatoes and Yukon Gold potatoes for a show stopping side dish. This easy potato recipe uses just ten ingredients and is simple enough to make for a weeknight dinner but elegant enough for any holiday meal.

    This recipe is from my cookbook Live Life Deliciously: Recipes for Busy Weeknights and Leisurely Weekends.

    Gruyere potatoes au gratin with two kinds of potatoes
    Jump to:
    • Cheesy au Gratin Potatoes
    • Potatoes au Gratin vs. Scalloped Potatoes
    • Ingredients
    • How to Make Potatoes Gruyere au Gratin
    • What to serve with Potatoes Au Gratin
    • Storage
    • Tips
    • FAQs
    • More easy potato recipes:
    • 📖 Recipe
    • 💬 Comments

    Cheesy au Gratin Potatoes

    Does making a potato gratin intimidate you? Well, it shouldn't! This dish looks so impressive but is actually SO simple to put together, it has only ten ingredients!

    I've turned a classic potato gratin recipe ON ITS SIDE! (literally!) Plus I use two types of potatoes here, sweet potatoes and Yukon Gold.

    Instead of layering the potatoes and cheese flat in a casserole dish, I've turned the thin slices of potato on their side and nestled them into the baking pan. It's easy enough for a beginner cook to make and takes zero extra time!

    When you bring this dish to your next social gathering, your friends and family will think that you spent all day on this Gruyere potatoes au gratin.

    Potatoes au Gratin vs. Scalloped Potatoes

    I'm going to be honest, I've never met a potato baked in cream and cheese I didn't like, so what you want to call it is up to you! However, technically there is a difference between scalloped potatoes and potatoes au gratin.

    The main differentiator between scalloped potatoes and au gratin is cheese. Potatoes au gratin uses grated cheese, usually a Gruyere or cheddar. Scalloped potatoes are cooked in only heavy cream or milk.

    Au gratin means: covered with bread crumbs or grated cheese and browned (like you would under a broiler). The French prefix "au" is often left off as a dish then becomes referred to as A Gratin.

    A thought on the origin of the name scalloped potatoes is that it came from an older English word, “collops”, meaning, among other things, slices of meat. It is also closely related to the French word, escalope.

    Listen, in all my days I've never eaten scalloped potatoes that didn't have cheese. I think most American scalloped potato recipes love a good cheese addition, so the definitions have been blurred.

    More differences technically include the fact that scalloped potato slices tend to be thicker than au gratin. In my cheesy au gratin potatoes, that is definitely the case; my potato slices are super thin.

    Close up of cheesy potato gratin with sweet potatoes.

    Ingredients

    The best spuds for a two potato gratin are sweet potatoes and Yukon Golds. Sweet potatoes make this dish so flavorful and even more beautiful. Plus, the different flavors make every bite of this gratin interesting.

    You're also going to need a variety of dried herbs and spices — garlic, parsley, thyme, sage, and rosemary — as well as a little whole milk and chicken broth.

    To add some flavor, add ½ cup thinly sliced yellow onion and a nutty cheese like Gruyere. I prefer using Gruyere to make this gratin, but sharp white cheddar works too.

    How to Make Potatoes Gruyere au Gratin

    If you think making a potato and sweet potato gratin is difficult, think again! This is such an easy recipe, but the slicing and assembling of the potatoes does require some patience.

    1. Peel both kinds of potatoes, and cut into very thin slices.
    2. In a large bowl, gently toss potatoes with salt, pepper, garlic powder, parsley, thyme, sage, rosemary, cheese, and onion.
    3. Working with a small handful of potatoes at a time, gently line up coated slices in a 2-quart baking dish.
    4. Pour milk and broth over potatoes.
    5. Cover pan with foil and seal around edges.
    6. Bake 50 minutes and remove foil. Continue to bake until potatoes are tender and top is golden.

    Pro Tip: When slicing regular Yukon Gold potatoes on a mandolin, you can do this up to a couple of hours in advance and hold the potatoes in a bowl of cold water to prevent them from discoloring. Just be sure to pat the slices very very dry before layering.

    Overhead view of Gruyere potatoes au gratin in a cast iron skillet

    What to serve with Potatoes Au Gratin

    These easy au gratin potatoes pair perfectly with your favorite Thanksgiving, Christmas, and Easter recipes! Here are some dishes you can serve with this gratin:

    • Brown Sugar Ham
    • Roast Leg of Lamb
    • Beef Tenderloin
    • Prime Rib
    • Honey Rosemary Chicken

    Storage

    Two potato gratin is best served immediately; consequently, the tops of the potatoes are crispy, while the bottoms are tender. However, to store any leftovers, place the potatoes into an airtight container in the fridge for up to four days.

    When ready to enjoy the leftovers, reheat the gratin in the microwave or a covered oven-safe dish in the oven for a few minutes until warmed through.

    Alternatively, you can also freeze the cheesy potatoes in an airtight container for up to one month.

    Thaw at room temperature or in the fridge overnight. Reheat as mentioned above.

    Tips

    To make this quick and easy potato gratin recipe even faster, use a mandoline to thinly slice the potatoes. If you don't have a mandoline, consider getting one. This Stainless Steel Mandoline on Amazon is a great one.

    With a mandoline, you don't have to fiddle with a big knife and a little potato. All you have to do is run it across the blade and voila! Perfect slices.

    You can make this recipe without a mandoline, but your slices will be uneven and it will take you FOREVER to cut all of them.

    FAQs

    Can fresh herbs be used instead of dried?

    Yes! This recipe is a great way to use the fresh herbs you have leftover from a holiday meal or the last bits after a week of cooking.

    I use fresh herbs in the spring and summer when they are plentiful and cheap. I’ll use my spice cupboard in the winter months. Use double the amount of fresh as you would dry.

    What's the difference between scalloped and gratin potatoes?

    Scalloped potatoes don't use cheese, although often recipes do add cheese to them. Au gratin potatoes are sprinkle with cheese between each layer as well as on top.

    Can I use all sweet potatoes or Yukon Gold potatoes?

    Yes, fee free to use either! The recipe will still be delicious.

    Why are my au gratin potatoes watery?

    Be sure to pat the potatoes very dry after thinly slicing. If you placed your potatoes in water to prevent from discoloring, be sure to pat extra dry in this case.

    Be sure to also let the gratin rest for 15 minutes after baking, after the gratin sits, it allows the excess water to be absorbed into the vegetables again and the sauce to thicken.

    More easy potato recipes:

    I absolutely love side dishes. Honestly, I think they're usually the best part of the meal. Try some of these other favorites:

    • Fluffy Mashed Potatoes
    • Baked Sweet Potato Cubes with Cinnamon Meringue
    • Shortcut Cheesy Potato Casserole
    • Garlic Mashed Potatoes
    • Herbed Potato Flatbread

    Rate this recipe! ⭐⭐⭐⭐⭐

    Scroll to the bottom of the page to rate and comment on this recipe. Leaving comments, questions, and ratings helps other too!

    📖 Recipe

    sweet potato and yukon gold gratin

    Potatoes Gruyere au Gratin

    Tara Teaspoon
    This Potatoes au Gratin with Gruyere uses both sweet potatoes and Yukon Gold potatoes layered with cheese for the most delicious gratin. With only ten ingredients, it's a simple side dish that is also a showstopper.
    4.41 from 35 votes
    Print Recipe Pin Recipe
    Work Time 20 minutes mins
    Total Time 1 hour hr 20 minutes mins
    Course Side Dish
    Servings 8 to 10

    Ingredients
      

    • 3 medium sweet potatoes
    • 6 small Yukon gold potatoes
    • 1 teaspoon kosher salt
    • ¼ teaspoon ground black pepper
    • ¾ teaspoon garlic powder
    • 1½ teaspoon dried parsley
    • ½ teaspoon dried thyme
    • ½ teaspoon ground sage
    • ½ teaspoon dried rosemary
    • 8 ounces Gruyère or sharp white cheddar (grated (2 cups))
    • ½ cup thinly sliced yellow onion (chopped)
    • ½ cup whole milk or half-and-half
    • ½ cup low-sodium chicken broth

    Instructions
     

    • Heat oven to 375°F. Peel potatoes, and, using a mandolin or vegetable slicer, cut into very thin slices. In a large bowl, gently toss potatoes with salt, pepper, garlic powder, parsley, thyme, sage, rosemary, cheese, and onion, until everything is evenly mixed. Be careful not to break the thin potato slices.
    • Working with a small handful of potatoes at a time, gently line up coated slices in a 10-inch cast-iron skillet or 2-quart baking dish. Pour milk and broth over potatoes. Cover pan with foil and seal around edges.
    • Bake 50 minutes and remove foil. Continue to bake until potatoes are tender and top is golden, 15 to 20 minutes more. You can test the potatoes with a knife to see if they are tender throughout. Cool slightly and serve hot.

    Video

    Notes

    • This recipe is a great way to use the fresh herbs you have leftover from a holiday meal or the last bits after a week of cooking. I use fresh herbs in the spring and summer when they are plentiful and cheap. I'll use my spice cupboard in the winter months. Use double the amount of fresh as you would dry.
    • To make this quick and easy potato gratin recipe even faster, use a mandoline to thinly slice the potatoes. If you don't have a mandoline, consider getting one. This Stainless Steel Mandoline on Amazon is a great one.
      • With a mandoline, you don't have to fiddle with a big knife and a little potato. All you have to do is run it across the blade and voila! Perfectly sliced potatoes.
      • You can make this recipe without one, but your slices will be uneven and it will take you FOREVER to cut all the slices.

    Nutrition

    Calories: 302kcalCarbohydrates: 42gProtein: 12gFat: 10gSaturated Fat: 6gCholesterol: 31mgSodium: 532mgPotassium: 897mgFiber: 6gSugar: 6gVitamin A: 12332IUVitamin C: 28mgCalcium: 264mgIron: 2mg
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    Tara Teaspoon

    I’ve been in food publishing for over 25 years, creating recipes & food-styling for magazines, books, television, food brands, & advertising. With two cookbooks under my belt and thousands of my recipes at your fingertips, I hope you'll be inspired to spend more time in the kitchen!

    More about Tara

    Photography by Ty Mecham. Updated 10/23.

    Comments

      4.41 from 35 votes (28 ratings without comment)

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    1. Megan Palmer says

      December 31, 2020 at 4:46 pm

      When I saw you make this on Instagram TV it gave m the courage to try it. It was delicious.

      Reply
    2. Mia says

      January 01, 2021 at 8:42 pm

      This is one of my favorite recipes in your new cookbook! Thanks for making everything so appetizing as well as tasty!

      Reply
      • Dorothy Mortenson says

        January 06, 2025 at 11:06 pm

        Excellent recipe in general; I really wanted to give this five stars, but the spicing fell more than a bit flat. It's definitely worth playing with a bit, so perhaps we can get it up that last notch.

        Reply
    3. Julie says

      January 05, 2022 at 8:49 pm

      My boyfriend and I were bringing a potato dish for a potluck dinner over the holidays and I suggested we try this since cheese and potatoes are the perfect match, but also the presentation is so beautiful. Well the dish was a hit and we received tons of compliments. Thanks for making us look so good Tara!

      Reply
      • Tara Teaspoon says

        January 07, 2022 at 10:23 am

        Ohh I love when there’s success and food joy! Thanks for sharing. Glad you liked it. Tara

        Reply
    4. sue says

      June 16, 2022 at 5:56 pm

      Hi Tara,
      This looks amazing - can any part of this gratin be made ahead?

      Reply
    5. Melony Hamilton says

      February 13, 2023 at 6:42 pm

      I LOVE the look of this dish and it made for a beautiful statement piece on Thanksgiving. A showstopper for my guests. Not only did it look fabulous, but it tasted fabulous. And it wasn't as hard as I thought it would be. It came together really easily. A favorite for our holiday spread and I will be making it for years to come!

      Reply
    6. Marla says

      December 28, 2023 at 1:55 pm

      The Potatoes Gruyere Au Gratin Says......
      This Potatoes au Gratin with Gruyere uses both sweet potatoes and Yukon Gold potatoes layered with butter and cheese for the most delicious gratin. With only ten ingredients, it's a simple side dish that is also a showstopper.

      Yet the recipe has no butter listed in the ingredients?
      What am I missing?

      Reply
    7. Julie C Taylor says

      December 26, 2024 at 11:43 pm

      Made this for Christmas dinner. It was fine. I made exactly as written. There was alot of liquid and the top of the potatoes were kind of crispy but never browned up like the online picture. Also it needed more seasoning. Bland

      Reply
      • Tara Teaspoon says

        December 30, 2024 at 3:51 pm

        Julie, sorry to hear you didn't love this. It's been made many times by people with great results. It is not meant to be a super creamy dish, but more like a traditional French gratin. If it was watery than it needed to cook longer as well as cook more uncovered. Everyone's oven is different so I suggest checking the oven temperature with an oven thermometer each time you use it, as I do when I test recipes to get the timing. I'm not sure how it would have been bland as it has a generous amount of herbs and seasonings, but you can always salt your food as you eat it.

        Reply
    8. Tom W. says

      January 04, 2025 at 1:56 am

      I made this for my family tonight and it came out so well. The amount of potatoes I had, though, were enough for two 10" cast iron skillets, which I did use. The seasonings were perfection and my family absolutely loved it.

      Reply
      • Tara Teaspoon says

        January 04, 2025 at 12:35 pm

        Tom I'm so happy to hear this! And double the goodness!

        Reply
    stunning cheese and herb potato gratin in cast iron pan
    TWO POTATOES AU GRATIN WITH GRUYERE
    TWO POTATOES AU GRATIN WITH GRUYERE

    Hi, I'm Tara Teaspoon!

    I’ve been sharing my original ideas for years. What began as a passion, turned into a publishing career as Food Editor at Martha Stewart Living and Ladies’ Home Journal magazines.

    Now I write cookbooks, and share delicious recipes and expert cooking tips with you here! Thanks for stopping by Tara Teaspoon!

    More about me →

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