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Caramelized Scalloped Potatoes with Caramelized Onions: Creamy & Flavorful

Scalloped Potatoes with Caramelized Onions

Course potatoes, Side Dish
Cuisine American
Keyword scalloped potatoes with caramelized onions; scalloped potatoes
Prep Time 15 minutes
Cook Time 2 hours
Total Time 2 hours 15 minutes
Servings 8
Author Recipe Idea Shop/Lois Carter Crawford based on Katheryn's Kitchen recipe


  • 2 cups heavy cream
  • 4 cloves garlic (minced)
  • 3 whole peppercorns
  • 3/4 teaspoon sea salt
  • 2 sprigs fresh thyme or a pinch of dried thyme
  • 2 medium yellow onions (thinly sliced)
  • 2 tablespoons olive oil
  • 3 pounds potatoes (peeled and sliced thin [Use Yukon Gold or another starchy variety])
  • 1 cup shredded Pecorino Romano


  1. In a medium saucepan, heat the cream, garlic, peppercorns, salt and thyme to not quite boiling.
  2. Reduce the heat to low.
  3. Cover and simmer for 12-15 minutes, stirring frequently. Then set aside.
  4. In a skillet, heat the oil over medium-high heat. Sauté the onions in the skillet until caramelized (nicely browned).
  5. In an 8 x 10 (greased) baking pan, layer the ingredients (similar to lasagna) as follows: potatoes, onions, cheese, potatoes, onions, cheese, etc., ending with cheese.
  6. Strain the cream mixture to remove any lumps and pour it over the layered potatoes.
  7. Bake at 300F degrees (on a baking sheet to catch drips) for 1.5 to 2 hours until tender.
  8. Serve hot.


Recipe Notes

You can make Caramelized Onions in your slow cooker and freeze them to save a step on the recipe!