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Creamy Au Gratin Potatoes: The Ultimate Guide to a Classic Comfort Dish


  • Author: isabil
  • Total Time: 1 hour 20 minutes
  • Yield: 6-8 servings 1x

Description

Master the perfect creamy Au Gratin Potatoes with this rich, cheesy recipe. A must-try comfort dish for holidays & family dinners!


Ingredients

Scale

Main Ingredients:

  • 4 large Yukon Gold or Russet potatoes, thinly sliced (about inch thick)
  • 2 cups heavy cream or half & half
  • 2 tbsp butter
  • 1 small onion, finely chopped
  • 2 cloves garlic, minced
  • 1 tsp salt
  • ½ tsp black pepper
  • ¼ tsp nutmeg (optional, for extra depth)
  • 1 tsp dried thyme (or 1 tbsp fresh thyme)

Cheese Options (Use One or a Mix):

  • 1 cup Gruyère cheese, shredded
  • 1 cup sharp Cheddar cheese, shredded
  • ½ cup Parmesan cheese, grated

Instructions

  • Preheat the Oven:
    • Set the oven to 375°F (190°C) and grease a 9×13-inch baking dish with butter.
  • Prepare the Creamy Sauce:
    • In a saucepan over medium heat, melt butter, then add onions and garlic. Cook until soft (about 2-3 minutes).
    • Stir in heavy cream, salt, black pepper, nutmeg, and thyme. Heat until warm but do not boil. Remove from heat.
  • Layer the Potatoes:
    • Arrange half of the potato slices in an overlapping layer in the baking dish.
    • Pour half of the warm cream mixture over the potatoes and sprinkle half of the cheese.
    • Repeat the process with the remaining potatoes, cream, and cheese.
  • Bake to Perfection:
    • Cover the dish with foil and bake for 40 minutes.
    • Remove the foil and bake uncovered for another 20 minutes or until the top is golden and bubbling.
  • Let It Rest & Serve:
    • Allow the dish to rest for 10 minutes before serving. Garnish with fresh thyme or parsley.

Notes

  • Use a mandoline slicer for even potato slices, ensuring uniform cooking.
  • Shred your own cheese—pre-shredded cheese contains anti-caking agents that affect melting.
  • For extra crispiness, broil the dish for the last 2-3 minutes.
  • For added flavor, mix in crisp bacon bits or caramelized onions between layers.
  • Make it ahead: Assemble the dish, cover, and refrigerate up to 24 hours before baking.
  • Store leftovers in an airtight container in the fridge for up to 4 days. Reheat at 350°F for 15 minutes.
  • Prep Time: 20minutes
  • Cook Time: 1 hour