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Potatoes au Gratin Casserole

A creamy and cheesy side dish featuring layers of thinly sliced russet or Yukon Gold potatoes, baked to perfection and sure to impress at any dinner gathering.
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Prep Time 20 minutes
Cook Time 1 hour 10 minutes
Total Time 1 hour 30 minutes
Servings: 8 servings
Course: Side Dish
Cuisine: American
Calories: 350
Ingredients Method Notes

Ingredients
  

Main Ingredients
  • 2 pounds Russet potatoes Thinly sliced
  • 2 cups Sharp cheddar cheese Grated
  • 1 cup Heavy cream Full-fat, not low-fat
  • 1 cup Milk Full-fat preferable
  • 1 tablespoon Butter For greasing the baking dish
  • 1 teaspoon Salt To taste
  • 1 teaspoon Black pepper To taste
  • 1 teaspoon Garlic powder Optional
  • 1 teaspoon Fresh thyme Optional

Method
 

Preparation
  1. Preheat your oven to 375°F (190°C).
  2. Peel (if desired) and thinly slice the Russet potatoes.
  3. Grease a baking dish generously with butter.
  4. Layer half of the sliced potatoes in the dish, sprinkling with salt, pepper, garlic powder, and thyme.
Layering and Baking
  1. Sprinkle half of the grated cheddar cheese over the potatoes, then pour half of the milk and cream mixture over them.
  2. Layer the remaining potatoes and repeat with the cheese and cream mixture.
  3. Top with a generous layer of cheese.
  4. Cover loosely with foil and bake for 45 minutes.
  5. Remove the foil and bake for an additional 25 minutes, or until golden brown.
Finishing Touches
  1. Let the casserole rest for 15 minutes before cutting and serving.

Notes

For extra flavor, consider adding ingredients like smoked gouda, leeks, or bacon bits. Remember to let it rest after baking to prevent a soupy mess.