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0 from 75 votes

Cheesy Potato Gratin

Give me all the gratins please!! This Cheesy Potato Gratin is one for the record books and you need it STAT.

Prep Time
10 mins
Cook Time
1 hr 10 mins
Total Time
1 hr 20 mins
Servings: 8 people
Calories: 379 kcal
Course: Side Dish
Cuisine: French

Ingredients

  • 2 pounds Yukon Gold potatoes (Russet potatoes also work as do sweet potatoes or a combination of any of the above)
  • kosher salt and freshly ground pepper
  • 1 tablespoons olive oil
  • 1 yellow onion diced
  • 1 ½ cups heavy cream
  • 1 cup shredded gruyere cheese
  • ¾ cup shredded Parmesan cheese
  • ¼ cup crème fraîche or mascarpone cheese
  • fresh thyme for garnish

Instructions

    Cup of Yum
  1. Preheat an oven to 400°F. Grease a 9-inch baking dish with butter or non-stick cooking spray.
  2. Cut the potatoes into ⅛ inch slices. Arrange the slices, slightly overlapping, on the bottom of the baking dish and season with salt and pepper.
  3. In a medium skillet, heat the olive oil over medium high heat. Add the onion and sauté until starting to caramelize, about 8-10 minutes. Add the heavy cream and bring the liquid to a simmer. Simmer until slightly thickened, about 5 minutes. Stir in ¾ cup of the gruyere cheese and all of the parmesan and cook until smooth and melted. Remove the mixture from the heat, let cool slightly and stir in the crème fraîche. Season with salt and pepper.
  4. Pour the cream mixture evenly on top of the potatoes and sprinkle the remaining ¼ cup of Gruyere cheese evenly on top. Bake until golden brown and bubbly and the potatoes are fork tender when pierced with a knife, about 45 minutes to 1 hour. Let the gratin rest for about 15-30 minutes before serving. Garnish with thyme and serve.

Notes

  • I recommend learning to use a mandolin. With the safety features and patience you can easily cut even slices without getting your fingers.

Nutrition Information

Calories 379kcal (19%) Carbohydrates 23g (8%) Protein 12g (24%) Fat 27g (42%) Saturated Fat 16g (80%) Polyunsaturated Fat 1g Monounsaturated Fat 8g Cholesterol 79mg (26%) Sodium 290mg (12%) Potassium 571mg (16%) Fiber 3g (12%) Sugar 3g (6%) Vitamin A 933IU (19%) Vitamin C 24mg (27%) Calcium 331mg (33%) Iron 1mg (6%)

Nutrition Facts

Serving: 8people

Amount Per Serving

Calories 379

% Daily Value*

Calories 379kcal 19%
Carbohydrates 23g 8%
Protein 12g 24%
Fat 27g 42%
Saturated Fat 16g 80%
Polyunsaturated Fat 1g 6%
Monounsaturated Fat 8g 40%
Cholesterol 79mg 26%
Sodium 290mg 12%
Potassium 571mg 12%
Fiber 3g 12%
Sugar 3g 6%
Vitamin A 933IU 19%
Vitamin C 24mg 27%
Calcium 331mg 33%
Iron 1mg 6%

* Percent Daily Values are based on a 2,000 calorie diet.