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5 from 11 votes

Au Gratin Potatoes

Creamy, aromatic, cheesy, and easy. Au Gratin Potatoes is a classic recipe with many renditions! Try my favorite bechamel-free method with the fastest prep that will still give you flavorful, creamy, cheesy results.
Prep Time15 minutes
Cook Time1 hour 15 minutes
Total Time1 hour 30 minutes
Course: Appetizer, Side Dish
Cuisine: French
Keyword: au gratin, au gratin potatoes, mashed potatoes
Servings: 6
Calories: 562kcal
Author: Nicole Beaulieu

Ingredients

  • 1 clove garlic halved
  • 2 tbsp butter softened
  • 2 cups heavy cream
  • 1/2 cup milk
  • 1 tsp fresh thyme roughly chopped
  • 1/4 tsp nutmeg optional
  • 2 tbsp chives chopped, divided
  • 1/2 tsp salt or to taste
  • 1/2 tsp pepper or to taste, freshly ground
  • 1/2 cup parmesan cheese shredded
  • 1 cup gruyere cheese shredded
  • 2 lbs yellow potatoes sliced into about 1/8" (3mm) thin rounds
US Customary - Metric

Instructions

  • Preheat the oven to 400F. Grab the halved garlic and rub it, cut-side-down, all over the bottom and sides of a 10 or 11" cast iron skillet. Discard any garlic leftover. Spread the butter evenly all over the bottom and sides of the skillet.
  • Whisk the heavy cream, milk, thyme, nutmeg, 1 tbsp of the chives, salt, and pepper together in a large mixing bowl. Taste for seasoning and adjust with salt if needed. Add the sliced potatoes to the mixture, making sure each slice gets coated well.
  • Take about 1/3 of the potato slices and lay them in an even layer into the prepared skillet. Sprinkle half of the shredded gruyere over the potatoes. Add another layer of potatoes, the rest of the gruyere, then top with the rest of the potatoes.
  • Pour the remaining cream mixture in the mixing bowl evenly into the skillet. Cover the skillet with foil and bake for 1 hour, until the potatoes are tender. Remove the foil and sprinkle the parmesan cheese evenly over the potatoes. Bake for another 15-20 minutes, until the top is golden brown. Garnish with remaining chives and serve.

Notes

Nutritional information is an estimate and may vary depending on the ingredients you use.
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Nutrition

Calories: 562kcal | Carbohydrates: 31g | Protein: 15g | Fat: 43g | Saturated Fat: 27g | Trans Fat: 1g | Cholesterol: 151mg | Sodium: 483mg | Potassium: 762mg | Fiber: 4g | Sugar: 2g | Vitamin A: 1676IU | Vitamin C: 32mg | Calcium: 421mg | Iron: 2mg