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Crispy Parmesan and Gruyere Potato Gratin Recipe

  • Author: Sally Thompson
  • Prep Time: 20 minutes
  • Cook Time: 70 minutes
  • Total Time: 1 hour 30 minutes
  • Yield: 8 servings 1x
  • Category: Side Dish
  • Method: Baking
  • Cuisine: French-inspired
  • Diet: Vegetarian

Description

Get ready to fall in love with the perfect side dish: Crispy Parmesan and Gruyère Potato Gratin. This easy dinner recipe brings together thinly sliced potatoes, nutty Gruyère cheese, sharp Parmesan, and fresh thyme in a rich, creamy bake with a golden crust. It’s ideal for holiday meals, comfort food nights, or as a luxurious addition to your list of dinner ideas and food ideas. Whether you're looking for a quick side dish, a cozy comfort classic, or an elegant twist on easy recipes, this gratin fits beautifully into your plans. Plus, it reheats like a dream!


Ingredients

Scale

900g Yukon Gold or Russet potatoes

200g Gruyère cheese, shredded

60g Parmesan cheese, grated

400ml heavy cream

1 tablespoon fresh thyme leaves

1 teaspoon salt

1/2 teaspoon black pepper

1 clove garlic (optional), cut in half or minced

Butter or olive oil for greasing


Instructions

1. Preheat your oven to 375°F (190°C). Lightly grease a 9x13-inch baking dish with butter or olive oil. Rub with a cut garlic clove if using.

2. Thinly slice the potatoes (about 1/8-inch thick) using a mandoline or a sharp knife.

3. In a small saucepan, heat the cream with salt, pepper, and thyme. Let it simmer for 2–3 minutes to infuse flavor, then remove from heat.

4. Layer one-third of the potato slices into the prepared dish. Sprinkle with some Gruyère and Parmesan. Pour a little cream over the top. Repeat until all ingredients are used, finishing with cheese on top.

5. Cover with foil and bake for 45 minutes. Remove foil and bake an additional 20–25 minutes until golden and bubbly.

6. Let rest for 10–15 minutes before slicing and serving.


Notes

For extra richness and flavor, add a few dots of butter on the top layer before baking.

Always let the gratin rest after baking—it helps everything set and makes slicing easier.

You can assemble it a day ahead, refrigerate, and bake just before serving.


Nutrition

  • Serving Size: 1/8 of recipe
  • Calories: 340
  • Sugar: 2g
  • Sodium: 420mg
  • Fat: 22g
  • Saturated Fat: 13g
  • Unsaturated Fat: 7g
  • Trans Fat: 0g
  • Carbohydrates: 28g
  • Fiber: 2g
  • Protein: 10g
  • Cholesterol: 60mg

Keywords: potato gratin, cheesy potatoes, side dish, holiday side, comfort food, easy dinner recipe