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Crispy Parmesan and Gruyere Potato Gratin

Luscious Crispy Parmesan and Gruyere Potato Gratin Recipe

This Crispy Parmesan and Gruyere Potato Gratin combines creamy Yukon Gold potatoes with rich garlic sauce and melty cheeses for an indulgent dish.
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Prep Time 20 minutes
Cook Time 1 hour 15 minutes
Resting Time 10 minutes
Total Time 1 hour 45 minutes
Servings: 6 slices
Course: Dinner
Cuisine: French
Calories: 380
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Gratin
  • 2 cups heavy cream substitute with half-and-half for a lighter touch
  • 1 teaspoon kosher salt sea salt works well
  • 3 cloves garlic (minced) use fresh garlic for best aroma
  • 2 tablespoons butter swap with olive oil for dairy-free
  • 1 medium shallot (diced) yellow onion can be used
  • 3 pounds Yukon Gold or White Potatoes Russet can be used but may alter texture
For the Cheesy Topping
  • 1 cup Gruyere Cheese (grated) Swiss cheese is a good substitute
  • 1 cup Parmesan Cheese (grated) Pecorino Romano can be an alternative
  • 2 tablespoons fresh thyme dried thyme can replace fresh with adjusted quantity

Equipment

  • mandoline slicer
  • cast iron skillet
  • Saucepan
  • Aluminum foil

Method
 

Cooking Steps
  1. Preheat your oven to 325°F (163°C).
  2. In a small saucepan, combine the heavy cream, kosher salt, and minced garlic. Place it over low heat and gently simmer for about 5 minutes.
  3. Using a mandoline slicer, thinly slice your Yukon Gold potatoes into 1/8 inch rounds.
  4. In a 12-inch cast iron skillet, melt butter over low heat. Add the diced shallots and sauté them for about 5 minutes.
  5. Artfully layer the sliced potatoes in a spiral arrangement over the shallots in the skillet. Pour the garlic cream mixture evenly over the potatoes.
  6. Cover the skillet tightly with aluminum foil and place it in the preheated oven. Bake for 1 hour and 15 minutes.
  7. After the baking time, switch the oven to broil. Carefully uncover the gratin, and generously sprinkle the grated Gruyere and Parmesan cheeses on top, along with fresh thyme. Broil for about 5 minutes.
  8. Once golden and crispy, remove the gratin from the oven and let it rest for a few minutes. Serve warm.

Nutrition

Serving: 1sliceCalories: 380kcalCarbohydrates: 30gProtein: 10gFat: 28gSaturated Fat: 17gPolyunsaturated Fat: 1gMonounsaturated Fat: 8gTrans Fat: 1gCholesterol: 65mgSodium: 700mgPotassium: 600mgFiber: 3gSugar: 1gVitamin A: 500IUVitamin C: 15mgCalcium: 300mgIron: 2mg

Notes

Allow the gratin to rest for a few minutes before serving for easier serving without losing that delightful, cheesy texture.

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