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Home » Instant Pot » Instant Pot Au Gratin Potatoes
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Instant Pot

Instant Pot Au Gratin Potatoes

By Rachael | Updated on January 26, 2023

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Instant Pot Au Gratin Potatoes

Au Gratin Potatoes cooked in the Instant Pot or Pressure Cooker, the perfect side dish. Creamy and cheesy, you will LOVE these potatoes.

Serve with Roast Chicken and Roasted Carrots.

Au Gratin Potatoes cooked in the Instant Pot pressure cooker

These cheesy delicious potatoes are soaked in a flavorful cream sauce, and cooked to perfection in the instant pot pressure cooker. Au Gratin potatoes are one of our family’s favorite site dishes, and are surprisingly easy to make, especially with the right tools (an instant pot pressure cooker and mandolin slicer).

Instant Pot Au Gratin Potatoes
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When I was a kid, I thought these kind of potatoes were only served at funerals. I lived in a neighborhood where the average age of the residents was 80+ so I attended a LOT of funerals. And these Au Gratin Potatoes were served at all of them. And I loved them. It wasn’t until I was an adult that I realized you could make them whenever, and they are commonly served at holidays, especially with ham, but are good ALL THE TIME.

The best cheesy Instant Pot Au Gratin Potatoes Scalloped potatoes

I mean, how awesome does that cheese look? Every time I make these, my family gobbles them up. And who can blame them? They are delicious and a surprisingly easy to make.

Au Gratin Potatoes

What is the difference between scalloped potatoes and au gratin potatoes?

Technically, the difference between scalloped potatoes and Potatoes Au Gratin is scalloped potatoes are cut thicker than the potatoes used in au gratin, and Au Gratin potatoes usually have Gruyere cheese added to them. But if you do not have Gruyere you can use a different option, I love these potatoes with mozzarella.

What potatoes are best for making au gratin potatoes?

While you could use whatever potatoes you like for this dish, the potatoes you use will make a difference in the consistency and flavor of the dish. The best potatoes for au gratin is Russet or Yukon Gold. They are the starchiest, which makes the cream sauce the thickest and creamiest.

Instant Pot Au Gratin Potatoes Scalloped potatoes

You cook these in the pot-in-pot method, basically you do not want to put the creamy-cheesy sauce directly in the bottom of your instant pot because it will read “burn” and never come to pressure because the sauce is too thick. So instead, you put water in the bottom, and cook it over the water by placing the pot on a trivet.

There are a number of different pots you could use, I used a 7 inch by 3 inch spring form pan, but have made it in a 7 inch by 3 inch cake pan as well. The spring form pan leaked a little, so I recommend the cake pan. You can find it here on Amazon.

Instant Pot Au Gratin Potatoes are cheesy, scalloped potatoes, layered into delicious goodness

The top cheese should be added after the fact, and broiled to get that delicious cheesy top. However, if you want to skip a step, you can add the cheese at the very end, and put the lid back on and let it melt, it won’t get that crispy brown bits, but it will melt.

Then add some fresh parsley to lighten it up and add some color.

Instant Pot Au Gratin Potatoes are scalloped potatoes cooked in an instant pot pressure cooker

Tools for making Instant Pot Au Gratin Potatoes

  • Fat Daddio’s 7×3 inch Cake Pan: This is the perfect pan for making Au Gratin potatoes. It is going to fit in your 8 Qt Instant Pot without an issue, and because it is 3 inches deep, all of your potatoes will fit.
  • Mandolin Slicer: To get a nice even and thin slice on your potatoes, the mandolin slicer is awesome. It will help your potatoes cook evenly, and keep them thin enough to cook perfectly.
  • Instant Pot: I used an 8 QT DuoPlus Instant Pot, it is the perfect size pressure cooker for making these scalloped potatoes.
  • Trivet: You need a trivet because you have to have steam for the pot to come to pressure, which means you need liquid, so you put the liquid in, then the trivet, and then the pot of food.

Other great accessories:

  • Fat Diddio’s 7” Cheesecake Pan: Yes you can make your cheesecakes in a pan that actually fits into your Instant Pot. But it is also great for these Au Gratin potatoes. If you don’t have the cake pan, the springform works great. You may want to make sure the seal is good so the sauce does not leak, but this works great. 
  • Stackable steamer pots: Great for cooking pot in pot, cooking veggies, rice, etc. 
  • Colored Sealing Rings: I love having multiple sealing rings, one for sweet, one for savory so you don’t accidentally flavor your other foods to taste like whatever you last cooked, such as Mexican Shredded Chicken.

Recipes that go great with Au Gratin Potatoes:

  • Summer Fruit Salad
  • Apple Spinach Salad with Balsamic Vinegar Dressing
  • Ham Cheese Rolls
Au Gratin Potatoes cooked in the Instant Pot pressure cooker

Instant Pot Scalloped Potatoes

Layers or potatoes, cream, and cheese make these delicious au gratin potatoes. These cheesy delicious potatoes are soaked in a flavorful cream sauce, and cooked to perfection in the instant pot pressure cooker.
4.13 from 16 votes
Print Pin Rate
Course: Potato
Cuisine: American
Keyword: instant pot scalloped potatoes, instant pot scalloped potatoes recipe
Prep Time: 20 minutes
Cook Time: 25 minutes
Total Time: 45 minutes
Servings: 6
Calories: 427kcal
Author: Rachael

Ingredients

  • 1 1/2 lbs russet potatoes washed and peeled, sliced thin with a mandolin slicer
  • 1 cup heavy whipping cream
  • 1/2 cup milk
  • 1/2 cup chicken stock
  • 1/2 Tbs minced garlic
  • 2 Tbs all-purpose flour
  • 1 1/2 tsp salt
  • 1 tsp ground black pepper
  • 1/4 tsp cayenne pepper
  • 1 Tbs brown mustard
  • 1 cup grated mozzarella cheese or gruyere cheese
  • 1/2 cup grated parmesan cheese
  • 1 cup grated cheddar cheese

Garnish

  • Fresh Parsley

Instructions

  • Thinly slice the potatoes using a mandoline slicer. Slice thin.
  • In a medium bowl whisk together heavy cream, milk, chicken stock, garlic, flour, salt, black pepper, mustard and cayenne. Taste, and adjust taste to preference.
  • In another bowl, mix the three cheeses together, and set aside.
  • Spray a round cake pan that can easily fit inside your pressure cooker with non-stick cooking spray. For the 8 qt instant pot an 8 inch round with 2 inch sides should work. If using a smaller pressure cooker, use a 6-7 inch round with 3 inch sides.
  • Layer half of the potatoes into the round pan, followed by half of the cheese.
  • Pour half of the liquid over the top.
  • Add the remaining potatoes, and remaining liquid. But reserve cheese for after cooking time is up.
  • Pour 2 cups of water into the liner of your pressure cooker and place the trivet in the bottom, with the handles up.
  • Carefully place your round cake pan full of potatoes into the pan on top of the trivet.
  • Place the lid on your pot, and lock into place. Set the valve to sealing.
  • Cook on HIGH pressure for 35 minutes, followed by a QUICK RELEASE of the pressure.
  • Preheat oven to broil on high.
  • Carefully pull the round cake pan out by the trivet handles, and put on a baking sheet.
  • Top with the remaining cheese and place under the broiler in your oven until cheese is bubbly and starting to brown, approximately 3 minutes.
  • Let the potatoes rest for about 5 minutes to give sauce a chance to thicken, and top with fresh parsley garnish if desired, and serve.

Notes

Recipe is my own, but method for cooking is from IWashYouDry's scalloped potatoes: https://iwashyoudry.com/instant-pot-scalloped-potatoes/

Nutrition

Calories: 427kcal | Carbohydrates: 26g | Protein: 16g | Fat: 28g | Saturated Fat: 17g | Cholesterol: 98mg | Sodium: 1001mg | Potassium: 593mg | Fiber: 1g | Sugar: 2g | Vitamin A: 1035IU | Vitamin C: 6.9mg | Calcium: 386mg | Iron: 1.5mg

Our recipe card software calculates these nutrition facts based on averages for the above ingredients, different brands, and quality of produce/meats may have different nutritional information, always calculate your own based on the specific products you use in order to achieve accurate macros for this recipe.

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Instant Pot Au Gratin Potatoes or Scalloped Potatoes are cheesy and oh so delicious.

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Related

Related categories:
Easter Holiday Instant Pot Sidesau gratin potatoes cheesy potatoes potatoes scalloped potatoes side dish

Reader Interactions

Comments

  1. Patty says

    March 30, 2018 at 6:37 pm

    How would u make these potatoes in the oven?
    ★★★★☆
    Reply
    • Rachael says

      April 3, 2018 at 5:16 pm

      Prepare as stated, but instead of cooking them in the instant pot, put them in your oven for 45 minutes at 350!
      Reply
  2. Maureen says

    May 2, 2018 at 7:42 pm

    i made this and it was delish however, no way 2lb of potatoes will fit in a 7 inch by 3 in pan. maybe 1lb 8oz. Also I didn't understand what was meant by brown mustard? actually I used english mustard which was good but a bit hot for my husband so I would probably use less mustard next time. Also instead of 25mins on high I would do 30mins on high as some of the potatoes were a bit hard.
    ★★★★★
    Reply
    • Rachael says

      May 3, 2018 at 6:42 am

      Thanks Maureen, I used a mandolin slicer so my potatoes were quite thin and the timing was great, but if yours were thicker that would definitely be necessary to cook longer. Brown mustard is a mustard product, just like you can get dijon, etc. Some places it is called "spicy brown mustard" so hopefully if you make it again you can find it. Thank you for taking time to comment!
      Reply
  3. Wanda says

    June 26, 2018 at 6:20 am

    What size pan would i use if my instant pot is 6 qrt? Also would I have to modify the recipe?
    Reply
    • Rachael says

      June 27, 2018 at 1:06 pm

      You would want to make less, or split it into two batches because you won't be able to get a big enough pan into your 6 qt for the amounts listed. I use a 6 inch x 3 inch pan (a wilton cake pan) inside my 6qt, but it will be a bit too small, so you could do it in two batches. Hope that helps.
      Reply
  4. Marci Buttars says

    November 28, 2018 at 7:12 am

    Is it not necessary to cover the potatoes while they cook? Was the condensation not an issue on top of the potatoes?
    Reply
    • Rachael says

      December 10, 2018 at 10:57 am

      Hi Marci, you could cover them, but I did not find it to be a problem and made these many many times.
      Reply
  5. Lori Roberts says

    December 15, 2018 at 9:49 pm

    I made this tonight in my Ninja Foodi. When i looked at the recipe I thought no way will they fit into my spring form pan (7 inch) but it did! I cooked for 26 mins and it was not quite done. I will make this again but will knock down the salt more. I would rather sprinkle between layers. I did not use mozzarella. Doubled the cheddar and used Parmesan according to recipe. It does require to sit for a few mins to thicken. All in all the recipe is very good. I did use a mandolin to slice my potatoes and also onions that i added.
    ★★★★★
    Reply
  6. JC says

    January 3, 2019 at 6:31 pm

    I used a mandolin at thinnest setting (.75mm) and prepared as directed. Potatoes were raw in the middle, sauce was thin and runny. Very disappointed with this recipe. Had to finish the dish in the oven which delayed dinner substantially. I had such high hopes.
    Reply
    • Rachael says

      January 5, 2019 at 1:16 am

      Oh no! I am so sad they weren't cooked through for you. I have made them several times, and have had to cook them longer a time or two, so I will update the recipe for others. Thank you for the input. Did you let them cool at all for the sauce to thicken up? I would love to help troubleshoot.
      Reply
      • EmmaCamille says

        February 17, 2019 at 1:02 pm

        It looks like you changed the cook time in the recipe but not in the header at the ripe of the recipe. One says 25 min, another said 35 min. I wasn’t sure which was correct so reading th comments helped, but you may want to change that. You may also want to note that cooking in the oven for 45 mins may be faster than pressure cooking for 35 min since the IP usually takes 12-15 min to reach pressure before the timer starts counting down. I didn’t leave a rating because I haven’t actually made these yet, but they look yummy. Thanks!
  7. Sylvia L Gregg says

    April 17, 2019 at 8:13 pm

    The dish turned out great. Will make over and over again. Didn't have heavy cream on hand, so just used one cup of milk only. Also, didn't have brown mustard, so I used regular mustard but everything turned out wonderful. Not watery at all but just right.
    ★★★★★
    Reply
  8. Chris says

    July 9, 2019 at 2:51 pm

    I have the smallest insta pot they make. I dont have a metal pan small enough for it. Do you think I can use a pyrex glass dish in it to make the potasotes? Thank you
    Reply
    • Rachael says

      July 20, 2019 at 11:38 am

      Yes, just make sure it has no chips or weaknesses.
      Reply
  9. Abby says

    November 20, 2019 at 10:40 pm

    Is it necessary to use a pan insert? Could this just be done in the main pot?
    Reply
    • Rachael says

      December 3, 2019 at 6:33 pm

      It can't be done in the main pot because it tends to scortch the bottom and you will get a burn read on the pot.
      Reply

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