• Home
  • About
    • About
    • Let's work together- Brands
    • Jobs
    • Image and Recipe Use Policy
    • Editorial Policy Page
    • Contact Page
    • Process for Recipe Testing and Fact Checking
    • Copyright
  • Recipe Box
    • Appetizers
    • Breakfast
    • Main Dish
    • Side Dish
    • Dessert
    • Resources
  • Collections
    • Cooking Device
      • Air Fryer
      • Crockpot
      • Grill
      • Instant Pot and Pressure Cooker
      • Microwave
      • Smoker Recipes
      • Stove Top and Oven
    • Southern Cooking Recipes
    • Beginner Cook Recipes
      • Easy Comfort Food Recipes
      • Canned Food Basics
    • Holiday Recipes
      • Christmas Favorites
      • Valenites Recipe Favorites
      • Easter Favorites
      • Mother's Day Favorites
      • Patriotic Holiday Favorites
      • Thanksgiving Favorites
    • Preserving Food
      • Canned Food Basics
    • Birthday Dinner Ideas
    • Fan Favorite Recipes
    • Pasta Recipes
    • Soups and Stews
  • PODCAST
menu icon
go to homepage
  • About
  • Recipes
  • Podcast
search icon
Homepage link
  • About
  • Recipes
  • Podcast
×
Home » Recipes

THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES

Published: Nov 21, 2017 · Modified: Jul 1, 2025 by Wendi Spraker · This post may contain affiliate links · 14 Comments

879 shares
Jump to Recipe Print Recipe
The Secret to Perfect Au Gratin Potatoes

Have you ever attempted scalloped potatoes or Au gratin potatoes only to find that your potatoes never fully cooked through? Nothing worse than biting into crunchy tasteless potatoes when your mouth was expecting soft, tangy, cheesy delicious Au Gratin. Have you ended up with clumpy cheese? No worries. I have the secret to perfect every time Au Gratin Potatoes.

The crunchy potato thing has happened to me so many times I can’t even count. I couldn’t figure out what to do about it until I read in a Cook’s Illustrated piece stating that they precook the potatoes. Which, personally, is what I had figured out to do but it had felt like cheating.

Close up overhead shot of THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES
THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES

I mean, come on, what kind of person who considers themselves a decent cook actually precooks the potatoes for the Au Gratin just to make sure the potatoes are all cooked through? Me. That’s who. And apparently - the AWESOME chefs over at Cook’s Illustrated.

Frankly, the proof is in the pudding - er - Au Gratin. And ensuring that your potatoes are cooked  all the way through is one of THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES

Side view of THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES
THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES

WHAT IS THE DIFFERENCE BETWEEN SCALLOPED POTATOES AND AU GRATIN POTATOES?

Contents show
1 WHAT IS THE DIFFERENCE BETWEEN SCALLOPED POTATOES AND AU GRATIN POTATOES?
2 HOW DO YOU MAKE CHEESY SCALLOPED POTATOES?
3 THE BEST QUESTION IS, HOW DO YOU MAKE HOMEMADE CHEESY SCALLOPED POTATOES OR AU GRATIN POTATOES
4 THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES
4.1 THE RECIPE FOR THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES
4.2 THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES
4.2.1 Ingredients
4.2.2 Instructions
4.2.3 Notes
4.2.4 Nutrition
4.3 TIPS AND TRICKS FOR THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES
4.3.1 IF YOU ENJOYED THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATO, YOU MIGHT ALSO ENJOY...
4.3.2 GIVEAWAY!!
4.3.3 A VERSE TO SHARE
4.3.3.1 THE COMING HOLIDAY
4.3.3.2 Ephesians 5:20
4.3.4 You May Also Love:

The difference between scalloped potatoes and Au Gratin potatoes is CHEESE my friend. My good ol friend CHEESE! Every recipe I’ve ever seen for scalloped potatoes cooks the potatoes in a thickened milky slurry while Au Gratin usually layers in Gruyere Cheese that melts into a cheesy deliciousness making Au Gratin which is one of THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES

overhead shot that is further away of THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES
THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES

HOW DO YOU MAKE CHEESY SCALLOPED POTATOES?

Cheesy scalloped potatoes are made by adding delicious melting cheese to the scalloped potatoes, but then, officially the potatoes become Au Gratin potatoes. See how that works? So, making cheesy scalloped potatoes is one of  THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES. 

THE BEST QUESTION IS, HOW DO YOU MAKE HOMEMADE CHEESY SCALLOPED POTATOES OR AU GRATIN POTATOES

If you will hang on through the recipe, I’ll tell you how to make homemade cheesy scalloped potatoes or Au Gratin Potatoes, because essentially, they are the same thing, right? You need all of the rest of the secrets of THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES. 

THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES

  • Slice the potatoes to exactly the same size - ⅛th inch.
  • Precook the potatoes in flavored water.
  • Make the sauce in a separate sauce pan and add when putting it all together - this equals CREAMY cheese!
  • Add everything to the baking dish and bake!
  • NOW YOU KNOW ALL THE SECRETS for no lumpy cheese and no uncooked potatoes!
A photo of the casserole dish of THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES sitting on my oven
This is what the full casserole dish looked like, but we ate it before I could take a professional pic.

THE RECIPE FOR THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES

Side view of THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES

THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES

This easy cheesy au gratin is perfect for any family dinner
5 from 5 votes
Print Pin SaveSaved! Rate
Course: Potato Gratin
Cuisine: American
Keyword: au gratin potatoes, how to make perfect au gratin potatoes
Prep Time: 35 minutes minutes
Cook Time: 45 minutes minutes
Total Time: 1 hour hour 20 minutes minutes
Servings: 8 servings
Calories: 351kcal
Author: Wendi Spraker

Ingredients

  • 4 large russet potatoes fist size or slightly bigger
  • 6 cups water
  • 2 teaspoon bouillon concentrate
  • 1 stick of sweet creamed unsalted butter
  • 1 cup heavy cream
  • 1 cup shredded Gruyere Cheese - parmesan if you don’t have Gruyere
  • 8 oz block of cream cheese - cut into small pieces.

Instructions

  • Preheat the oven to 350 and spray a 9x13 pan with cooking spray.
  • Peel the potatoes and then cut into ⅛ “ slices. Use a mandolin slicer if you have it to keep the slices very even.
  • In a stock pot, heat the water and the bouillon until boiling over medium heat. When water is boiling, gently add the potato slices to the water and return to a slow boil.
  • Cook the potatoes in the boiling bouillon water until the potatoes are nearly cooked through. Should retain some of the crunch in the center. Do not overcook them till they are soggy and falling apart -this is just a pre cook. Every few minutes, GENTLY turn the potatoes using a large spatula, slotted spoon or kitchen spider. Use care not to break the potatoes. Check frequently to see if they are starting to become soft.
  • While the potatoes are cooking, in a separate sauce pan combine the butter, cream, Gruyere and cream cheese and cook over medium heat until all are melted. Stir frequently to keep it from burning/sticking to the bottom of the pan. Whisk out any lumps.
  • When the potatoes are nearly cooked through and the cheese is melted, gently scoop the potatoes into the 9x13 prepared pan (use care not to break) and pour the cheese sauce over the potatoes until you have either poured all of it over or until the level of the cheese sauce reaches the top of the potatoes. You may have extra cheese left over.
  • Bake at 350 until the sauce is bubbly throughout, the potatoes are cooked through and a slightly browned crust develops on the top - about 35-45 minutes.

Notes

Be careful not to overcook the potatoes or they want to fall apart in the oven. 
 

Nutrition

Nutrition Facts
THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES
Amount Per Serving (1 g)
Calories 351 Calories from Fat 234
% Daily Value*
Fat 26g40%
Saturated Fat 16g80%
Trans Fat 0.004g
Polyunsaturated Fat 1g
Monounsaturated Fat 7g
Cholesterol 81mg27%
Sodium 236mg10%
Potassium 527mg15%
Carbohydrates 21g7%
Fiber 2g8%
Sugar 3g3%
Protein 10g20%
Vitamin A 982IU20%
Vitamin C 21mg25%
Calcium 232mg23%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.
Tried this recipe?Mention @loavesanddishes or tag #loavesanddishes!

 

TIPS AND TRICKS FOR THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES

  • If you do not have a mandolin slicer, then do the best you can with your best kitchen knife. The slices need to be uniform and no thicker than about ⅛ inch.
  • When you add the potato slices to the boiling water, the water will soon absorb and thicken, by the time you add the potatoes to the baking dish, there won't’ be much water left at all.
  • It is best to test the potatoes for doneness by simply eating one. I know - that might freak you out a little to eat a raw potato - but I’m an advocate of knowing what your dish tastes like at every step - except, of course, for raw meat.
  • This dish is perfect garnished with some fresh thyme. Thyme would also be good added to the cooking recipe, but I just don’t do it that way. You know how picky family eaters are.
  • If you need a mandoline slicer, this is the top recommended one from Cooks Illustrated, I always trust their recommendations. I won't give you a link to mine, because it is awful and dangerous. It could cause a lost finger tip. Go for the best mandoline! No point in losing digits over Au Gratin! If you click the photo it will take you through to Amazon so you can look at the mandoline slicer. This post may contain affiliate links which won’t change your price but will share some commission. I thank you! (Sorry the photo is so small!)
A photo of the dish sitting in my photo studio with my black pug, Leroy Brown, poking his head in the photo for THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATOES
This is a Bad Leroy Brown approved dish!

IF YOU ENJOYED THE SECRET TO PERFECT EVERY TIME AU GRATIN POTATO, YOU MIGHT ALSO ENJOY...

The Secret to Old Fashioned Pinto Beans

The Secret to Perfect Southern Fried Apples

The Secret to Perfect Chicken Fried Steak

The Secret to Perfect Southern Collard Greens

The Secret to Perfect Southern Sweet Tea

Twice Fired Au Gratin Potatoes

GIVEAWAY!!

I know I have told you before, but Deiss makes my FAVORITE kitchen hand tools! I have used a Deiss zester and a Deiss peeler in my kitchen for the past year and they are both still just as sharp as the day I took them out of the box! That is saying something for the daily use - near abuse - that my kitchen utensils receive. The handles are grippy and easy to hold when your hands are wet. Besides that, the bright yellow handle on the zester makes it easy to find in the drawer! The peeler even makes tiny cute veggie strips! What more could you want?

For this post, I've teamed up with Deiss to GIVEAWAY a peeler and a zester, just like the ones that I have! You are some LUCKY folks! Deiss will mail the peeler and zester directly to you.

What do you have to do? Just enter below- that's it. Answer a single simple question.

I mean, If you let some friends know about Loaves and Dishes, in addition to answering the one simple question, I would be so happy! You could tell a friend that you love this site. You could share the Loaves and Dishes facebook page and encourage your friends to like it. You could send some friends a link to your favorite recipe. But, you don't have to do anything other than answer the single question. I just appreciate that you are here and that is what this giveaway is all about! Thankfulness!

a Rafflecopter giveaway

A VERSE TO SHARE

As we embark upon our Thanksgiving holiday, I hope that all of us will remember who we are giving thanks to. Many today say they are thanking themselves for all of their hard work. Many say they don’t believe in a God. Many thank the Universe or luck or ….. Well, frankly, I don’t know who they are thanking.

Personally, I am thanking God. God has sheltered me, provided for me and directed me for my entire life. Did I get everything I wanted? Nope. Did I accomplish everything I tried? Absolutely not. Has there been devastating hardships and trials? Of COURSE there has been!

But, even when I thought the skies were the darkest, I knew God was there. I knew it would all work out for his purpose. For that I am thankful. He will always be there for you too.

THE COMING HOLIDAY

As we approach this holiday, I am especially thankful for my family, my health and this blog. My readers are the most wonderful people. I wish ya’ll could meet each other, I think you would like each other! I know I like you!

Anyway, thank you for reading this blog. Thank you for sharing your hearts and stories from your life and your kitchens. I hold everything you share dearly. You make me smile every single day. That is why I keep doing this blog. Because I see that it is meaningful to you and to me.

Thank you God for bringing us together. Amen.

Ephesians 5:20  

“always giving thanks to God the Father for everything, in the name of our Lord Jesus Christ”

 

You May Also Love:

  • overhead photo of baked potato with butter on gray plate on blue napkin
    How To Microwave a Baked Potato Recipe in Minutes
  • overhead shot of bowl of mac and cheese with spoon
    How to Make Kraft Mac and Cheese Better (Easy Hacks)
  • omato based soup in a white bowl on a blue plate
    Easy Lasagna Soup Recipe
  • steakhouse potato salad on a fork
    Steakhouse Potato Salad
Post Views: 1,374

More Recipes

  • Greek Dressing with spoons in a white dish
    Copycat Cava Greek Dressing Recipe
  • A glass with coffee and cold foam on top
    How to Make Cream Cheese Cold Foam at Home
  • french toast on a blue plate with two spoons, whipped cream and berreis
    Overnight French Toast Casserole
  • gooey butter cake from over head with two spoons, on a blue plate with a white napkin
    St. Louis Gooey Butter Cake

Comments

  1. Marcy Kwiatkowski says

    April 20, 2019 at 10:45 am

    Any chance this could be made in a crockpot? I won’t have any oven space tomorrow lol

    Reply
    • Wendi Spraker says

      April 20, 2019 at 8:35 pm

      Marcy,
      I've never made them that way, BUT I am completely SURE that if you precook them as described in the recipe and then put into the crockpot on low for 4-6 hours they should be fine. Crockpot is like a mini oven, you just have to allow some extra time for the lower temp. 🙂 . Happy Easter!

      Reply
  2. Agatha says

    January 02, 2019 at 8:47 am

    5 stars
    I've sort of made this twice now. But I'm lazy and cannot bring myself to cook the potatoes on the stove and then in the oven. Particularly when its a special occasion (which is the only time I would make something this rich) and I have a lot of other things to do. My mandolin does not have an attachment for slicing things 1/8" thick or if it did I don't seem to have it now. My mandolin slices potatoes about the thickness of a thick potato chip. So I skip the part where you cook the potatoes in broth and carefully transfer them to the baking dish. I slice the potatoes quite thin, lightly salt them, pour the sauce over, and bake for an hour. Also, in light of the warning about the possibility of too much cheese sauce, and the reality that one can never have too many au gratin potatoes at a holiday meal, I most recently used six medium large russet potatoes. I also sliced up one or two yellow onions with the mandolin right behind the potatoes and threw them in as well. And while I used the precise measurements for butter, cream and cream cheese, I did not precisely measure the gruyere/parmesan. I used both because I had picked up an inferior store brand gruyere (too soft, too mild) and had authentic parmesan. And I was a bit generous I suspect. In any event, the potatoes were fantastic and I will continue to return to this recipe even though I don't quite follow it.

    Reply
    • Wendi Spraker says

      January 02, 2019 at 8:49 am

      Agatha, that’s ok! You made it yours and that’s what counts!! Sounds delish! I suspect that you sliced your potatoes thin enough that they are able to cook fully through in the oven. If they are much thicker it is more difficult to get them cooked through. I’m so glad you enjoyed this recipe!

      Reply
      • Agatha says

        January 16, 2019 at 1:21 pm

        5 stars
        Note that in addition to slicing very thin, I also increased the bake time to an hour. I think it's the combination of those two changes that gets them cooked perfectly.

        Reply
    • Linda Neither says

      December 15, 2020 at 7:41 pm

      @Agatha,

      Reply
  3. Catheirne Lewis says

    July 31, 2018 at 3:03 pm

    5 stars
    This is exactly what I've been looking for in a gratin recipe. Do you think these would be ok as a 'make ahead' dish? Wondering if I could hold the assembled casserole in the refridge for a day and bake it when needed. Thanks!

    Reply
    • Wendi Spraker says

      July 31, 2018 at 3:06 pm

      Catherine! Hi! I haven't tried making them ahead but I can't see any reason that it wouldnt. work. Come back and let us know how it turned out!

      Reply
      • Catherine Lewis says

        August 02, 2018 at 6:32 pm

        5 stars
        Ok, I just finished putting this together and it's in the oven now. Didn't do it ahead of time, because it is such a easy recipe, there really is no reason to try and make it ahead. Looking forward to serving it tonight. Thanks again! PS: the cheese sauce is outstanding!

        Reply
        • Wendi Spraker says

          August 02, 2018 at 6:34 pm

          Hi Catherine! I'm so glad that it looks like it will be a winner! Come back and try some other stuff! Enjoy your dinner!

          Reply
    • Linda Neither says

      December 15, 2020 at 7:56 pm

      @Catheirne Lewis, I have canned sliced potatoes in a can. I didn't know what to do with them.Sooooo. I mixed 2 cups milk with 1/2 stock butter, 3 tables of flour,1/4 tsp of garlic powder,1/4 tsp black pepper and 1tble spoon minced fresh onion. Stir together on medium high heat constantly and gradually add 2 cups grated cheddar cheese and 1/4 cup parmesan cheese.Stir until bubbles appear. Remove from heat. Pour into buttered oblong dish. Gently stir sauce throughout making sure to cover potatoes. Bake 350 degrees for 45 minutes. Viola!!! Good Eatin'.

      Reply
  4. Moxie says

    February 02, 2018 at 11:26 am

    5 stars
    Every time I try to make scalloped potatoes, this is my problem. I tried it your way and they were perfect!

    Reply
  5. Mary says

    November 22, 2017 at 7:51 am

    We LOVE au gratin potatoes, yours look excellent. Love all the ingredients you use for making this creamy cheesy dish. Will be making these over the weekend! Your "secret to perfect" articles are fantastic. Pinned. Perfect Bible verse! Thank you for sharing. Happy Thanksgiving to you and family.

    Reply
    • Wendi Spraker says

      November 22, 2017 at 9:05 am

      Hi Mary! Thank you for stopping by! I always appreciate your comments. Let me know if you do make these and how they turned out! 🙂

      Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Recipe Rating




Welcome!

Hi! I'm Wendi and I believe that food made with love and passion has power. It can bring people together AND carry them home. I'll show you how to get amazing flavor from simple dishes. Your family and friends will exclaim, "WOW! Amazing! I NEED this recipe!" Join me and nourish your body and soul.

More about Wendi

Popular

  • cheesey chicken and orzo in a blue dish with spinach and a spoon
    One Pot Chicken and Orzo Recipe
  • Three chicken wings on a light blue plate with a wooden background.
    How To Make Super Crispy Chicken Wings in Your Air Fryer
  • Glass of Vietnamese iced coffee with ice cubes and a sprinkle of cinnamon on top, served in a ribbed glass with a spoon beside it.
    How to Make Vietnamese Coffee
  • Glass pitcher and tumbler of Orange Coconut Refresher with an orange slice garnish, ice cubes, and a spoon on a wooden serving board.
    Orange Coconut Refresher Recipe

Seasonal

  • cowboy caviar in a blue and white bowl with tortilla chips on a blue plate
    How to Make Cowboy Caviar
  • Homemade cookies with chocolate chunks on turquoise plate, extreme close-up view
    Thin and Chewy Chocolate Chip Cookie Recipe
  • Dill pickle dip with crushed potato chips and fresh dill on top, in a casserole dish with a grey towel
    Dill Pickle Dip Recipe
  • Easy Chicken Tortilla soup in a white bowl on a blue plate
    Easy Chicken Tortilla Soup Recipe

Wendi Spraker, Amazon International Best Selling Author

book titles Aspire

Footer

↑ back to top
Banner of sites featuring loaves and dishes including MSN, Country Living, People, etc
AS SEEN IN

About

  • About
  • Privacy Policy
  • Copyright
  • Contact
  • Process for Recipe Testing
  • Editorial Policy

Like what you see? Join 10,000 other people who subscribe to Loaves and Dishes!

  • Sign Up! for emails and updates

As Seen In

NYC Catering award badge

As an Amazon Associate I earn from qualifying purchases.

Copyright © 2025 Loaves and Dishes