Dauphinoise Potatoes (Potatoes Au Gratin Recipe)

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Here’s a classic and indulgent recipe for Dauphinoise Potatoes (also known as Potatoes Au Gratin). Thinly sliced potatoes are layered with cream, garlic, and cheese, then baked to golden perfection—making it the ultimate comfort food side dish.

Ingredients:

  • 2 1/2 lbs (1.1 kg) potatoes (Yukon Gold or Russets work best)
  • 2 cups (480 ml) heavy cream
  • 1 cup (240 ml) whole milk
  • 3 garlic cloves, minced
  • 1 tsp salt
  • 1/4 tsp ground nutmeg (optional)
  • 1/2 tsp black pepper
  • 1 1/2 cups (150 g) grated Gruyère cheese (or a mix of Gruyère and Parmesan)
  • Butter, for greasing the dish

Instructions:

1. Prep the Ingredients:

  1. Preheat your oven to 375°F (190°C).
  2. Peel the potatoes and slice them very thinly (about 1/8 inch) using a sharp knife or mandoline.

2. Prepare the Cream Mixture:

  1. In a saucepan, combine the heavy cream, milk, minced garlic, salt, pepper, and nutmeg (if using). Heat gently over medium heat until warm but not boiling. Stir occasionally.

3. Assemble the Dish:

  1. Grease a baking dish (about 9×13 inches) with butter.
  2. Arrange a layer of potato slices on the bottom of the dish, slightly overlapping them.
  3. Sprinkle a small amount of cheese over the layer.
  4. Repeat with the remaining potatoes and cheese, finishing with a generous layer of cheese on top.

4. Add the Cream and Bake:

  1. Pour the warm cream mixture evenly over the potatoes, making sure it seeps into all the layers.
  2. Cover the dish with foil and bake for 45 minutes.

5. Finish Baking:

  1. Remove the foil and bake uncovered for an additional 20–30 minutes until the top is golden brown and the potatoes are tender when pierced with a knife.

6. Rest and Serve:

  1. Allow the dish to rest for 10–15 minutes before serving to let the flavors meld and the layers set.
  2. Serve warm as a side dish for roasted meats, poultry, or fish.

Tips:

  • Cheese Substitutions: If Gruyère isn’t available, you can use Comté, Emmental, or sharp white cheddar.
  • For Extra Flavor: Add thinly sliced onions or fresh thyme between the layers.
  • Make Ahead: Assemble the dish a few hours in advance, refrigerate, and bake just before serving.

This Dauphinoise Potatoes recipe is rich, creamy, and absolutely irresistible—a perfect addition to any dinner table!

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