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Cheesy Scalloped Potatoes Recipe

4.9 from 70 reviews

This Cheesy Scalloped Potatoes recipe is a comforting classic casserole featuring tender russet potatoes layered with a creamy garlic-infused cheese sauce, crispy bacon, and fresh chives. Baked to bubbly perfection, it’s a delicious side dish perfect for holidays or cozy family dinners.

Ingredients

Scale

Main Ingredients

  • 2 slices bacon, chopped into 1” pieces
  • 2 tbsp light butter
  • 2 garlic cloves, minced
  • 3 tbsp all-purpose flour
  • 3 cups low-fat milk (1%)
  • 1 lb russet potatoes, rinsed and scrubbed clean
  • 1 cup low-fat shredded cheddar cheese
  • ¼ cup finely chopped chives or scallions
  • Kosher salt, to taste
  • Freshly ground black pepper, to taste

Instructions

  1. Cook Bacon: Preheat your oven to 400°F. In a large skillet over medium heat, cook the chopped bacon pieces until crispy, about 8 minutes. Remove the bacon and drain on paper towels to absorb excess grease.
  2. Prepare Cheese Sauce: In another large skillet over medium heat, melt the light butter. Add the minced garlic and cook until fragrant, about 1 minute. Stir in the all-purpose flour and cook for another minute to form a roux. Gradually whisk in the low-fat milk and season with kosher salt and freshly ground black pepper. Simmer the sauce for about 5 minutes until it thickens slightly, then remove from heat.
  3. Slice Potatoes: Peel the russet potatoes and slice them thinly into coins about 1/8 inch thick, using a mandolin slicer if available for uniform slices.
  4. Assemble Casserole: Spoon a thin layer of the prepared cheese sauce into the bottom of a large casserole dish. Layer a single layer of potato slices on top of the sauce. Spoon more sauce over the potatoes, then sprinkle a layer of shredded cheddar and some of the crispy bacon pieces. Repeat layering potatoes, sauce, cheese, and bacon 3 to 4 times, filling the casserole dish mostly full.
  5. Bake: Place the casserole dish in the preheated oven and bake for about 1 hour and 15 minutes, until the sauce is bubbly and the potatoes are very tender when pierced with a fork.
  6. Rest and Garnish: Allow the scalloped potatoes to rest for at least 15 minutes after baking to set the layers. Before serving, sprinkle the chopped chives or scallions on top for a fresh finish.

Notes

  • Using a mandolin slicer helps achieve evenly thin potato slices which cook uniformly.
  • Letting the dish rest after baking helps the sauce thicken and the casserole to hold its shape better when served.
  • You can substitute bacon with pancetta or omit it for a vegetarian version (adjusting seasoning accordingly).
  • This recipe makes approximately 6 servings, perfect as a side dish for holiday dinners or weeknight meals.
  • myWW points: green 6, blue 6, purple 5

Keywords: Cheesy scalloped potatoes, baked potato casserole, low-fat cheesy potatoes, comfort food side dish, bacon scalloped potatoes