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Ultimate Creamy Slow Cooker Scalloped Potatoes and Ham Casserole

A close-up, gooey slice of scalloped potatoes and ham with melted cheese pulling apart.

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Prepare a rich, cheesy, and creamy scalloped potato and ham casserole using your slow cooker for simple preparation.

Ingredients

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  • 3 lbs Russet potatoes, peeled and thinly sliced
  • 1.5 cups cooked ham, diced
  • 1 medium onion, thinly sliced
  • 2 cups heavy cream
  • 1 cup milk
  • 1 cup shredded sharp cheddar cheese
  • 1/2 cup shredded smoked Gouda cheese
  • 2 tablespoons all-purpose flour
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1/4 teaspoon garlic powder

Instructions

  1. Place the sliced potatoes and onion into the slow cooker insert. Top evenly with the diced ham.
  2. In a separate bowl, whisk together the heavy cream, milk, flour, salt, pepper, and garlic powder until the flour is fully dissolved.
  3. Pour the cream mixture over the potatoes, ham, and onions in the slow cooker. Stir gently to coat everything.
  4. Cover the slow cooker and cook on low for 6 to 7 hours, or on high for 3 to 4 hours, until the potatoes are tender.
  5. In the last 30 minutes of cooking, stir in the cheddar cheese and smoked Gouda cheese until melted and the sauce is thick and creamy.
  6. Serve the casserole directly from the slow cooker.

Notes

  • For best results, slice potatoes about 1/8 inch thick. A mandoline slicer works well for uniform thickness.
  • You can use any cooked ham, including leftover holiday ham.
  • If the sauce seems too thin after cooking, remove the lid for the last 15 minutes to allow some moisture to evaporate.

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