Potatoes Au Gratin – thinly sliced potatoes layered with a deliciously thick cream sauce and topped with cheddar cheese. Such a great side dish for any type of meal and so much easier to make than you think!
Cheesy potatoes are one of those foods that everyone loves. It doesn’t matter what form they are in, when you say that is what is for dinner people get excited. Loaded Twice Baked Potato Casserole is a version that has mashed potatoes with cheese and bacon and is over the top amazing. These Au Gratin Potatoes are thinly sliced and then topped with cheese that gets all melty and delicious.
I love this potatoes au gratin recipe because of how simple it is. It really is just a few ingredients and not much work. The hardest part is slicing the potatoes. If you have a mandoline this is the time to break it out! You want the potatoes sliced as close to the same thickness as possible, so they cook at the same rate.
Scalloped Potatoes vs Au Gratin Potatoes
This is the big question that gets asked every time one of these recipes is made. The main difference comes down to the cheese. Scalloped potatoes are cooked in a very similar cream sauce they are just not topped with cheese. Au Gratin Potatoes always have melted cheese on top. Both use thinly sliced potatoes that are arranged in a casserole dish and baked until soft and tender.
The Best Potatoes for Potatoes Au Gratin
Russet potatoes are my favorite to use. They contain the most starch, so as they cook down it makes for the creamiest sauce. You can use red potatoes as well if you have them, but russets are my favorite.
How to Make Potatoes Au Gratin
- Thinly slice the potatoes. This is the time to break out your mandoline slicer. If you don’t have one, you can get a relatively inexpensive one for under $20 at Amazon. Trust me, it is worth the investment even if you only break it out a couple times a year.
- Arrange the potatoes in a casserole dish. You don’t want to just stack them tall, you want to have space between them and make them somewhat pretty. In addition to appearance, it allow the sauce to get into all the open areas and really cover the potatoes.
- Cover with the delicious cream sauce. You just pour over the potatoes trying to make sure that everything is covered.
- Bake – these do take awhile to bake. I start with them covered so that potatoes can actually cook without burning. Then cover with cheese to finish baking.
Homemade au gratin potatoes are so much easier to make than they appear. They are perfect for your next holiday meal or even Sunday dinner. They do take awhile to bake, but really most of the time involved is hands off. These are perfect to make if you have leftover ham from the holiday, just mix it in when you layer the potatoes and it will blend with everything and be absolutely delicious!
What to Serve with Potatoes Au Gratin
More Great Potato Side Dish Recipes
- Scalloped Potatoes
- Oven Roasted Potatoes
- Jalapeno Cheddar Mashed Potatoes
- Loaded Baked Potatoes
- Instant Pot Mashed Potatoes
- Baked Potato Casserole
Perfect Potatoes Au Gratin

Potatoes Au Gratin - thinly sliced potatoes layered with a deliciously thick cream sauce and topped with cheddar cheese. Such a great side dish for any type of meal and so much easier to make than you think!
Ingredients
- 1 Tbls butter , diced
- 4 russet potatoes
- 1 cup heavy cream
- 1 cup milk
- 2 Tbls flour
- 3 garlic cloves , minced
- 1 tsp salt
- 1/2 tsp pepper
- 3/4 cup sharp cheddar cheese , shredded
- 2 green onions , thinly sliced
Instructions
- Preheat the oven to 400 degrees. Spray a large baking dish with non stick spray.
- Thinly slick potatoes, and arrange in the bottom of the baking dish.
- In a liquid measuring cup combine milk and cream. Whisk in flour, garlic, salt and pepper.
- Pour over potatoes. Spread diced butter over the top of the mixture.
- Cover, and bake for 60 minutes. Uncover, and bake for 20 more minutes.
- Sprinkle with cheese, and return to oven until the cheese is melted.
- Garnish with green onions to serve.
Notes
Adapted from The Pioneer Woman
Nutrition Information
Yield
8Serving Size
1Amount Per Serving Calories 418Total Fat 20gSaturated Fat 12gTrans Fat 1gUnsaturated Fat 6gCholesterol 61mgSodium 477mgCarbohydrates 46gFiber 3gSugar 2gProtein 13g
Nutrition Disclaimer: All information presented on this site is intended for informational purposes only. I am not a certified nutritionist and any nutritional information shared on dinnersdishesanddesserts.com should only be used as a general guideline.
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kita says
I just lent this book to my boyfriends mom and said the same thing – this woman sure does like her cream! I love the changes and would have done the same thing. I love how you sliced your potatoes – and sneaking in sweets too – brilliant! My boyfriend would hate me ;D
amy @ fearless homemaker says
I looove potatoes au gratin – one of my favorite comfort foods – and yours look fantastic!
Erin @ Texanerin Baking says
Oh my gosh. The last time I tried making potatoes au gratin, I almost all of the cheese sauce before I even cut the potatoes. So there were no potatoes. But the sauce was just sooo good. Couldn’t stop!
And this version looks especially nice! Even with the potatoes included. 😀
Kristen says
I am absolutely in love with the addition of the sweet potatoes! All of that cheese and goodness is calling to me!!
Erin @ The Spiffy Cookie says
I enjoy that you used the butter the same way I did hehe.
Camilla @ Culinary Adventures says
Yum! Need I say more?!? I love this group. Thanks for cooking.
Laura (Tutti Dolci) says
I just saw Suzanne’s post ;). Who can every say no to creamy potatoes?!
Tracey says
I just keep craving au gratin potatoes more and more as I see them on each of your blogs 🙂 Good to know these can be made a little lighter!
sally @ sallys baking addiction says
perfect indeed Erin! Will you believe me if I say I’ve never made potatoes au gratin before? my mom makes them quite often but I haven’t made them on my own before. This is the recipe to go to!
RavieNomNoms says
Love me some potatoes and cheese 🙂
Valerie says
I think potatoes au gratin are an excellent choice (much better than tenderloin!). Delicious!!
a farmer in the dell says
Potatoes, cream and cheese? Yes please! I’m starving looking at these photos!
Stephie @ Eat Your Heart Out says
I LOVE potatoes au gratin! And I love that you lightened yours up a little – makes them seem totally do-able for any time, not just special occasions!
Dorothy @ Crazy for Crust says
These totally look like the perfect potatoes! Yum!
Aimee @ ShugarySweets says
I love potatoes au gratin. These look wonderful and will be making their way on my dinner table soon!!
Rach says
This looks absolutely delightful! Sorry you guys have been sick. Hope you are all feeling better!
Jen L | Tartine and Apron Strings says
I think I saw this post over at Crunchy Creamy Sweet for Pass the Cook Book club! So yummy and tasty! I’m ga-ga over potatoes au gratin. Actually, any au gratin works too!
Cassie says
I love au gratin potatoes, Erin. These look so good. Nothing like some classic comfort food potaotes!
Stephanie @ Eat. Drink. Love. says
I love potatoes au gratin so this is a great choice! These look creamy, cheesy, and delicious!
Samantha @FerraroKitchen says
Love how you modified it…thats what I would do..just use what I have on hand. It looks amazing and delicious!
honeywhatscooking says
this looks incredible, and only 1 tbsp of butter. WOW! I’ve eaten a very loaded version of this, but I’ve been wanting to make it with less fat… a roux is really the only way to do that. Great blog. 🙂
Lisa {AuthenticSuburbanGourmet} says
What a great dish and perfect for Easter! My hubby could probably eat half that dish – one of his favs!
Christine says
I made this recipe last night. I used 3 small/medium garlic cloves and I feel it was a bit strong. I used 2% milk instead of skim. I also used a 9 x 13 pan but next time I think I will try to use a 9 x 9. Not as gooey as I would have liked. I think it was because the pan was too big. Decent recipe but I will be making adjustments. Will try a mixture of cheese instead of just cheddar next time.
Sara Welch says
I am loving all the cheesy goodness in this dish! Looking forward to enjoying this for dinner tonight; looks too good to pass up!
Dorothy Reinhold says
Just so happens I have everything I need for this dish! This sounds like a perfect side for dinner tomorrow!