How to Make Creamy au Gratin Potatoes - A Step-by-Step Guide

Creamy au Gratin Potatoes are a classic and indulgent side dish that is perfect for special occasions or as a comforting accompaniment to a hearty meal. This dish is a timeless favorite that combines tender slices of potatoes with a rich and creamy cheese sauce, topped with a golden brown crust. Whether you are hosting a dinner party or simply craving a decadent treat, this recipe is sure to please any crowd.

What makes this dish so special is the combination of ingredients that come ...

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Ingredients

  • 4 medium russet potatoes, thinly sliced
  • 1 medium onion, sliced into rings
  • salt and ground black pepper to taste
  • 3 tablespoons butter
  • 3 tablespoons all-purpose flour
  • ½ teaspoon salt
  • 2 cups milk
  • 1 ½ cups shredded Cheddar cheese

Information

  • Prep Time: 30 mins
  • Cook Time: 1 hr 30 mins
  • Total Time: 2 hrs
  • Servings: 4

  • Preheat the oven to 400 degrees F (200 degrees C). Butter a 1-quart casserole dish.
  • Layer 1/2 of the potatoes in the bottom of the prepared casserole dish; season with salt and pepper. Layer onion slices over top, then top with with remaining potatoes. Season again with salt and pepper.
  • Melt butter in a medium saucepan over medium heat. Gradually whisk in flour and salt and cook, whisking constantly until raw flour flavor has cooked off, about 1 minute. Gradually add milk, about 1/4 cup at a time, whisking well after each addition to incorporate; the gradual addition and whisking of milk will help avoid lumps in your sauce.
  • Cook, whisking constantly, until the mixture has thickened, 3 to 5 minutes. Stir in cheese all at once; continue stirring until melted, 30 to 60 seconds. Pour cheese sauce over the potatoes, and cover the dish with aluminum foil.
  • Bake in the preheated oven until potatoes are tender and sauce is bubbly, about 1 ½ hours.
  • Nutrition

    499 cal.

    • Total Fat: 25g
    • Saturated Fat: 16g
    • Cholesterol: 77mg
    • Sodium: 683mg
    • Total Carbohydrate: 49g
    • Dietary Fiber: 4g
    • Total Sugars: 9g
    • Protein: 20g
    • Vitamin C: 19mg
    • Calcium: 484mg
    • Iron: 3mg
    • Potassium: 1184mg