Ingredients

How to make it

  • Spray a 3 to 5 quart crockpot with cooking spray. I used a liner and sprayed it with canola spray. I really recommend a liner.
  • Place half of the potato slices in the bottom of the crockpot. Season with salt and pepper. Place half of the onions as a layer over the potatoes. Repeat with remaining potatoes and onions, seasoning the potatoes. See Photo
  • In a medium saucepan, melt butter over medium heat. Add flour and salt and whisk together and cook for one minute, whisking all the while.
  • Whisk in milk and cook until slightly thickened, approximately five minutes, whisking often.
  • Add cheese and whisk until melted. See Photo
  • Pour sauce over potatoes and onion in the crockpot.
  • Set heat to Low. Cover and cook for 5 to 6 hours or until potatoes are tender. See Photo
  • If you aren't happy with the color of the potatoes (they won't all get brown as when baked) you could always sprinkle some paprika on top before serving.
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Reviews & Comments 2

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  • mommyluvs2cook 8 years ago
    I love this method of making Au Gratin Potatoes!!
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  • NPMarie 8 years ago
    Brilliant! I love that it has the same ingredients as a baked Au Gratin Potato recipe...minus the mushroom soup..looks absolutely delicious!
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