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scalloped potatoes in a white casserole dish with a spoon inside the dish
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5 from 6 votes

Scalloped Potatoes

Tender potatoes are layered with cheddar cheese and diced onions to make a cheesy Scalloped Potatoes casserole, just like grandma used to make.
Prep Time15 mins
Cook Time50 mins
Resting Time5 mins
Total Time1 hr 15 mins
Course: Side Dish
Cuisine: American
Keyword: scalloped poatoes recipe, scalloped potatoes
Servings: 8
Calories: 351kcal

Ingredients

  • 4 pounds Yukon Gold potatoes, thinly sliced into about ¼-inch thick slices
  • 1 medium onion, finely diced or sliced
  • 3 tablespoons butter, cut up into smaller cubes, plus more to grease the baking dish
  • 3 tablespoons all-purpose flour
  • 2 cups milk
  • ½ teaspoon sea salt
  • ¼ teaspoon pepper
  • 1 to 1½ cups shredded cheddar cheese
  • chopped fresh parsley, for garnish

Instructions

  • Preheat oven to 350˚F.
  • Lightly grease a 9-inch baking dish with butter.
  • Peel the Yukon Gold potatoes and thinly slice them with a sharp knife or mandolin. You want them to be roughly ¼-inch thick.
  • Peel and finely dice the onion and set aside.
  • Arrange half of the sliced potatoes at the bottom of the prepared baking dish. Top with half flour, half the salt and pepper, half the shredded cheddar cheese, and half of the onion. Dot with half of the butter.
    Repeat these layers one more time.
  • In a medium saucepan, heat the milk until warm to the touch.
    Pour the milk over the prepared potatoes.
  • Cover the baking dish tightly with foil, and bake for approximately 45 minutes, or until the potatoes are hot and bubbly.
    Uncover and bake an additional 15 minutes, until the cheese is lightly browned.
  • Let the dish rest for 5 minutes, to allow the sauce to thicken.
  • Garnish with parsley and serve with your favorite main dish.

Nutrition

Calories: 351kcal | Carbohydrates: 46g | Protein: 12g | Fat: 14g | Saturated Fat: 8g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 1g | Cholesterol: 40mg | Sodium: 355mg | Potassium: 1081mg | Fiber: 5g | Sugar: 6g | Vitamin A: 447IU | Vitamin C: 46mg | Calcium: 254mg | Iron: 2mg