Slow Cooker Au Gratin Potatoes

ByMelissa Riker
25 Comments
Jump to Recipe·5 from 4 reviews

These easy Slow Cooker Au Gratin Potatoes are drenched in a creamy cheese sauce and cooked to perfection in your Crock Pot! Simply prep this dish in 10 minutes and let your Slow Cooker do the rest. It’s an easy everyday side dish that is tasty enough for holiday meals as well!

Slow Cooker Au Gratin Potatoes on 2 white plates

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Our family eats potatoes as a dinner side dish at least 2-3 times a week. Not only are potatoes an inexpensive option, but they can also be cooked in so many different kinds of ways so nobody gets bored! Some of our favorite potato recipes I’ve shared are Roasted Russet Potatoes, and Lemon Roasted Potatoes.

This Slow Cooker Cheesy Scalloped Potatoes recipe is the perfect example of comfort food if I’ve ever seen one! It’s easy to prep and made with gouda cheese for a rich, bold flavor.

Cheesy Scalloped Potatoes in slow cooker

Why I love this recipe

I love this Potatoes Au Gratin recipe because, like most slow cooker recipes, it is easy to prep ahead of time. It’s excellent for serving when entertaining as well. Simply set it up hours before your guests arrive and it will be perfectly cooked at dinner time.

It’s a hearty comfort food recipe that works well with a variety of meat entrees as well! What are you waiting for? Grab your Crock Pot and try it out!

scalloped potatoes on white plate

Ingredients

  • potatoes
  • onion
  • salt and pepper
  • butter
  • all-purpose flour
  • milk
  • Parmesan cheese
  • Gouda cheese

Step by step

slow cooker with thinly sliced potatoes and diced onion
  1. Spray a slow cooker with nonstick spray or line with a slow cooker liner. (You’ll thank me for this at cleanup time!)
  2. Add thinly sliced potatoes, onion, and salt and pepper and stir to mix.
  3. In a small saucepan melt butter over medium-high heat and add flour, whisking constantly for about 1 minute.
pouring cheese on scalloped potatoes in slow cooker
  1. Slowly add the milk, continuing to whisk, then add cheeses and continue stirring until melted.
  2. Remove the cheese mixture from the heat and pour over potatoes.
  3. Cover and cook on high 4-5 hours and you’re done: easy, cheesy slow cooker scalloped potatoes that you’ll fall in love with!
fork with scalloped cheesy potatoes

FAQs

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

Potatoes Au Gratin are traditionally thinly sliced potatoes that are covered in a cheese sauce, then covered with breadcrumbs and baked until brown.
Scalloped potatoes can be prepared with or without cheese and sometimes have breadcrumbs added which makes many people use the two terms interchangeably.

What type of potato is best for this recipe?

Red or Yukon Gold potatoes are perfect for this slow cooker scalloped potato recipe because they hold their shape during cooking. Many recipes call for Russet potatoes but cooking website The Kitchn suggests that this variety falls apart after being cooked in a scalloped or au gratin recipes.

Here are a few other ways to serve potatoes that your family will enjoy:

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  • Mandolin Slicer Once you try this mandolin slicer you’ll never chop veggies with a knife again!
  • Slow Cooker This is a large slow cooker perfect for families!

If you’ve tried this recipe please comment and rate it below, I love hearing from you!

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au gratin potatoes in slow cooker

Slow Cooker Cheesy Scalloped Potatoes

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5 from 4 reviews

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Description

These easy Slow Cooker Cheesy Scalloped Potatoes are drenched in a creamy cheese sauce and cooked to perfection in your Crock Pot! Simply prep this dish in 10 minutes and let your Slow Cooker do the rest. It’s an easy everyday side dish that is tasty enough for holiday meals as well!

Ingredients

Units Scale
  • 4 large potatoes, cut in thin slices
  • 1 medium yellow onion, diced
  • pinch each salt and pepper
  • 4 tablespoons butter
  • 3 tablespoons all purpose flour
  • 1 cup milk
  • 1/4 cup Parmesan cheese
  • 1 cup freshly shredded Gouda cheese

Instructions

  1. Spray a slow cooker with nonstick spray. (You’ll thank me for this at cleanup time!)
  2. Add potatoes, onion, and salt and pepper and stir to mix.
  3. In a small saucepan melt butter over medium high heat.
  4. Add flour whisking constantly for about 1 minute.
  5. Slowly add milk, continuing to whisk.
  6. Add cheeses and continue stirring until melted.
  7. Remove from heat and pour over potatoes.
  8. Cover and cook on high 4-5 hours. Serve warm.

Notes

  • red or Yukon potatoes are ideal for this recipe as they hold up to the long cook time
  • do not use pre-shredded cheese in this recipe, it is coated in a powdery substance to keep it from sticking and it will affect the end result of the recipe
  • Prep Time: 10 mins
  • Cook Time: 4 hours
  • Category: side dish
  • Method: slow cooker
  • Cuisine: American

Nutrition

  • Serving Size: 3/4 cup
  • Calories: 299
  • Sugar: 5 g
  • Sodium: 115.9 mg
  • Fat: 10.5 g
  • Carbohydrates: 44.9 g
  • Protein: 7.4 g
  • Cholesterol: 23.6 mg

Did you make this recipe?

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Melissa Riker is a recipe developer and online content creator who has been sharing kitchen-tested recipes since 2011. Her passion (other than wine and cheese!) is creating reliable, no-fail recipes for home cooks.

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25 Comments

  3. These cheesy scalloped potatoes are so easy to make since it uses the slow cooker. Using yellow or red potatoes means you don’t have to worry about your potatoes becoming mushy. They are cooked perfectly in this recipe and it’s SO yummy! Excellent side dish to serve with steak, ham, chicken, pork, pretty much any main dish meat. YUM!

    Reply

  6. Au gratin potatoes are so delicious but in the oven they can be tricky to time with other meals. Definitely going to try these in the crockpot! I have made them partly in the Instant Pot but then had to finish them in the oven. They were good, but having it in one dish is always better 🙂

    Reply

  7. I made this tonight. My potatoes did not cook all the way, even though I followed the recipe. The taste was quite good, even with them being slightly firmer than they should, The sides of the casserole got really overly done, though. Overall I think I will make it again.

    Reply

  8. Question…. I’m looking to make this for a night at a cabin. I do not have a stove top there and would just rely on my crock pot and grill. Do you think I could make the cheese sauce before hand to mix it all together in the crock a day later?

    Reply

    1. I haven’t tried myself but I don’t think it would be a problem Kathy. If you do try it can you come back and let us know how it was? ~Melissa

      Reply

  10. What size crockpot did you use? If I am making this for Thanksgiving, can I double the recipe? Do you have any recommendations for time if I do double the recipe?

    Reply

    1. Actually Jennifer, this was when we were living in England so it was a small European crockpot and I don’t know the exact size. My normal US crockpot is 6 quart and I would guess that it could hold the recipe doubled but I would lean towards the longer end of the cooking time. I wish I had time to test it for you because I know Thanksgiving is not the time you want to experiment! If you do double it can you come back and let us know how it went? ~Melissa

      Reply

    1. Hi Britta, It’s just a little bit of dried parsley. I added it for taking the pictures, not for taste. It helps the photographs if there is something to break up the solid colors! ~Melissa

      Reply

  12. Got these cheesy au gratin potatoes in one slow cooker going and beef ribs BBQing in the other.. The mess is in the dishwasher getting cleaned up now. Will make a pitcher of iced tea later on and heat up some rolls and in 4 or 5 hours we will be having a feast! Thanks for the recipe that allows me to have favorite foods without heating up the kitchen for hours with the oven !

    Reply

  14. I’m interested in making the SLOW COOKER AU GRATIN POTATOES but am looking to serve it as a side for roughly 16 people.

    So you have any tips for making this a successful attempt?

    Thanks!

    Reply

  15. This sounds amazing, I think I’ll try it tonight. It’s definitely Fall here and this will warm us up for sure. Your photography is beautiful, too. Where did you learn?

    Reply

    1. Oh thank you Treasure, I hope you like it. On my blogging resources page I list two things that really helped my photography-the Shoot, Fly, Shoot photography course for learning to shoot on manual and The Food Photography Book by Nagi from Recipe Tin Eats. Honestly, since I’ve switched to my Sony a6000 camera I rarely shoot on manual though-that camera makes it easy to take great pictures! (I have that and my lenses listed on that page as well.) https://thehappierhomemaker.com/blogging-resources/ Hope that helps! ~Melissa

      Reply

  16. I’m going to have to try some of these recipes. I love potatoes, but often get tired of the same styles all the time

    Reply